updated applet seed migration to include default applet sizes; other sundry styling refinements

src/templates/apps/dashboard/_partials/_applets.html

@@ -28,7 +28,7 @@
                 <section
                     id="id_applet_username"
                     style="--applet-cols: {{ entry.applet.grid_cols }}; --applet-rows: {{ entry.applet.grid_rows }};"
-                >
+                    >
                     <h1>{{ user|display_name }}</h1>
                     <div class="form-container">
                         <form method="POST" action="{% url "set_profile" %}">
@@ -36,6 +36,7 @@
                             <input
                             id="id_new_username"
                             name="username"
+                            class="form-control"
                             required
                             value="{{ user.username|default:'' }}"
                             >