hotfix: add default to search sass variables

assets/sass/_theme/configuration/components.sass

@@ -137,9 +137,9 @@ $table-body-size: $body-size !default
 $table-body-size-desktop: $body-size-desktop !default
 
 // Search
-$search-button-header-icon: true
-$search-button-header-text: false
-$search-button-footer-icon: true
-$search-button-footer-text: true
-$search-button-fixed-icon: true
-$search-button-fixed-text: true
\ No newline at end of file
+$search-button-header-icon: true !default
+$search-button-header-text: false !default
+$search-button-footer-icon: true !default
+$search-button-footer-text: true !default
+$search-button-fixed-icon: true !default
+$search-button-fixed-text: true !default
\ No newline at end of file