operation: Factor out template code into a separate file

- To be reused with app.html

Tests:

- During installation of the coturn app, operation progress is shown in the
page.

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/templates/operations.html

@@ -0,0 +1,10 @@
+{% comment %}
+# SPDX-License-Identifier: AGPL-3.0-or-later
+{% endcomment %}
+
+{% for operation in operations %}
+  <div class="app-operation">
+    <span class="fa fa-refresh fa-spin processing"></span>
+    {{ operation.translated_message }}
+  </div>
+{% endfor %}

plinth/templates/setup.html

@@ -69,14 +69,7 @@
     </form>
 
   {% else %}
-
+    {% include "operations.html" %}
-    {% for operation in operations %}
-      <div class="app-operation">
-        <span class="fa fa-refresh fa-spin processing"></span>
-        {{ operation.translated_message }}
-      </div>
-    {% endfor %}
-
   {% endif %}
 
 {% endblock %}