Improve outline button style, use everywhere

app/views/settings/_account.html.erb

@@ -13,13 +13,13 @@
             'settings--account--email-target': 'emailField'
           }, required: true %>
       <button type="button" id="edit-email"
-              class="btn-md btn-icon btn-blue shrink-0 hidden initial-visible"
+              class="btn-md btn-icon btn-outline shrink-0 hidden initial-visible"
               data-settings--account--email-target="editEmailButton"
               data-action="settings--account--email#editEmail"
               title="Edit email address">
         <span class="">
           <%= render partial: "icons/edit-3", locals: {
-                custom_class: "text-white h-4 w-4 inline" } %>
+                custom_class: "text-blue-600 h-4 w-4 inline" } %>
         </span>
       </button>
     </p>