[Repository] Use small text for descriptions in Notifications dropdown

Problem to solve

The description text in the Notifications dropdown should be small.

Screenshots

Proposal

Use small text for descriptions in Notifications dropdown

Implementation guide

Add gl-text-sm to line 44 in app/assets/javascripts/notifications/components/notifications_dropdown_item.vue:

diff --git a/app/assets/javascripts/notifications/components/notifications_dropdown_item.vue b/app/assets/javascripts/notifications/components/notifications_dropdown_item.vue
index 8ed53a24e6e3..b5b21ce3d4ef 100644
--- a/app/assets/javascripts/notifications/components/notifications_dropdown_item.vue
+++ b/app/assets/javascripts/notifications/components/notifications_dropdown_item.vue
@@ -41,7 +41,7 @@ export default {
   >
     <div class="gl-flex gl-flex-col">
       <span class="gl-font-bold">{{ title }}</span>
-      <span class="gl-text-subtle">{{ description }}</span>
+      <span class="gl-text-subtle gl-text-sm">{{ description }}</span>
     </div>
   </gl-dropdown-item>
 </template>