fix: button casing

app/assets/stylesheets/_sn.scss

@@ -4,6 +4,7 @@
   @extend .border-0;
   @extend .bg-main;
   @extend .cursor-pointer;
+  @extend .capitalize;
   @extend .font-bold;
   @extend .py-2;
   @extend .px-3;

app/assets/stylesheets/_ui.scss

@@ -146,6 +146,10 @@ $screen-md-max:              ($screen-lg-min - 1) !default;
   background-color: transparent;
 }
 
+.capitalize {
+  text-transform: capitalize;
+}
+
 .col-start-1 {
   grid-column-start: 1;
 }