refactor(global styles): move capitalize first letter into global stylesheet

assets/global.scss

@@ -95,3 +95,7 @@ body {
 .theme--dark .v-menu__content .v-list {
   background: map-get($material-dark, 'menus') !important;
 }
+
+.text-capitalize-first-letter::first-letter {
+  text-transform: uppercase;
+}

components/Users/UserCard.vue

@@ -79,8 +79,4 @@ export default Vue.extend({
 .empty-picture {
   height: 100%;
 }
-
-.text-capitalize-first-letter::first-letter {
-  text-transform: uppercase;
-}
 </style>

pages/settings/logsAndActivity.vue

@@ -249,9 +249,3 @@ export default Vue.extend({
   }
 });
 </script>
-
-<style>
-.text-capitalize-first-letter::first-letter {
-  text-transform: uppercase;
-}
-</style>