chore(button): remove empty line

Author: adrianptrv

src/app/data-entries/buttons/buttons-style/buttons-style.component.scss

@@ -219,7 +219,6 @@ $list: (
 //     $focus-visible-background: #ffccc7,
 //     $focus-visible-foreground: #d9363e,
 //     $focus-border-color: #d9363e
-
 // );	
 
 // $custom-flat-theme: flat-button-theme(