fix: customize scss에 맞게 다시 수정

hwe/scss/common/bootswatch_custom_variables.scss

@@ -65,6 +65,10 @@ $table-border-color:          $gray-700 !default;
 
 $table-bg-scale:              0% !default;
 
+// Buttons
+//Lumen button
+$btn-font-weight:             700 !default;
+
 // Forms
 
 $input-bg:                          $white !default;