Fix libAdwaita window controls

src/gtk-4.0/sass/_common.scss

@@ -4415,3 +4415,15 @@ $gpanthera-tab-indicator-width: 3px;

                                
                                
                                
                            
                                
                                    
                                        
                                            4415  
                                              }
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            4416  
                                            }
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            4417  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4418 +
                                        
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4419 +
                                        /**
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4420 +
                                         * Fix for window controls in libAdwaita apps
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4421 +
                                         */
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4422 +
                                        
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4423 +
                                        windowcontrols > button {
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4424 +
                                          @extend %button-flat;
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4425 +
                                          box-shadow: none;
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4426 +
                                          background-color: transparent;
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4427 +
                                          border-radius: theme.$circular-radius;
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4428 +
                                        }
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        4429 +