Allow users to set preferred locale in settings and provide basic date and time localization support (#1226)

* Add basic date and time localization

* Normalize translations

* Localize transaction dates

* Removed unsupported Rails locales

app/views/account/entries/_entry_group.html.erb

@@ -9,7 +9,11 @@
                           data: { action: "bulk-select#toggleGroupSelection" } %>
       <% end %>
 
-      <%= tag.span "#{date.strftime('%b %d, %Y')} · #{entries.size}" %>
+      <p class="uppercase space-x-1.5">
+        <%= tag.span I18n.l(date, format: :long) %>
+        <span>·</span>
+        <%= tag.span entries.size %>
+      </p>
     </div>
 
     <%= totals_by_currency(collection: entries, money_method: :amount_money, negate: true) %>

app/views/account/transactions/show.html.erb

@@ -19,7 +19,7 @@
     </div>
 
     <span class="text-sm text-gray-500">
-      <%= entry.date.strftime("%A %d %B") %>
+      <%= I18n.l(entry.date, format: :long) %>
     </span>
   </header>