refactor: use core components

lib/mv_web/live/user_live/form.ex

@@ -167,13 +167,14 @@ defmodule MvWeb.UserLive.Form do
                     </p>
                     <p class="text-sm text-green-700">{@user.member.email}</p>
                   </div>
-                  <button
+                  <.button
                     type="button"
+                    variant="danger"
+                    size="sm"
                     phx-click="unlink_member"
-                    class="btn btn-sm btn-error"
                   >
                     {gettext("Unlink Member")}
-                  </button>
+                  </.button>
                 </div>
               </div>
             <% else %>
@@ -281,10 +282,12 @@ defmodule MvWeb.UserLive.Form do
         <% end %>
 
         <div class="mt-4">
+          <.button navigate={return_path(@return_to, @user)} variant="neutral">
+            {gettext("Cancel")}
+          </.button>
           <.button phx-disable-with={gettext("Saving...")} variant="primary">
             {gettext("Save User")}
           </.button>
-          <.button navigate={return_path(@return_to, @user)}>{gettext("Cancel")}</.button>
         </div>
       </.form>
     </Layouts.app>