Fix app restart API; Add missing loading spinners and confirm dialogs on some pages

rootfs/standard/usr/share/mynode_apps/lndg/www/templates/lndg.html

@@ -42,5 +42,14 @@
             </ol>
 
         </div>
+
+        <div id="confirm-dialog"></div>
+
+        <div id="loading_spinner_overlay" class="loading_spinner_overlay" style="display:none;">
+            <img id="loading_spinner" class="loading_image" src="{{ url_for('static', filename="images/loading.gif")}}"/>
+            <br/>
+            <span id="loading_spinner_message">Loading...</span>
+        </div>
+        
     </body>
 </html>

rootfs/standard/usr/share/mynode_apps/wetty/www/templates/wetty.html

@@ -42,5 +42,14 @@
             </ol>
 
         </div>
+
+        <div id="confirm-dialog"></div>
+
+        <div id="loading_spinner_overlay" class="loading_spinner_overlay" style="display:none;">
+            <img id="loading_spinner" class="loading_image" src="{{ url_for('static', filename="images/loading.gif")}}"/>
+            <br/>
+            <span id="loading_spinner_message">Loading...</span>
+        </div>
+        
     </body>
 </html>

rootfs/standard/var/www/mynode/static/js/manage_apps.js

@@ -13,6 +13,21 @@ function restart(name, short_name) {
     }
 }
 
+function restart_app_via_api(name, short_name) {
+    if ( confirm("Are you sure you want to restart "+name+"?") ) {
+        $('#loading_spinner_message').html("Restarting...");
+        $('#loading_spinner_overlay').fadeIn();
+        $.get('/api/restart_app?app='+short_name)
+            .done(function( data ) {
+                if (data != "OK") {
+                    alert("Error restarting app: "+data)
+                }
+                $('#loading_spinner_overlay').fadeOut();
+            }
+        );
+    }
+}
+
 // ==========================================
 // Manage app installations
 // ==========================================

rootfs/standard/var/www/mynode/templates/app/generic_app.html

@@ -31,18 +31,6 @@
         <script src="{{ url_for('static', filename='js/hes-gallery.min.js')}}"></script>
 
         <script>
-        function restart_app_via_api(name, short_name) {
-            if ( confirm("Are you sure you want to restart "+name+"?") ) {
-                $('#loading_spinner_message').html("Restarting...");
-                $('#loading_spinner_overlay').fadeIn();
-                $.getJSON('/api/restart_app?app='+short_name, function( data ) {
-                    alert(data)
-                    if (data != "OK") {
-                        alert("Error restarting app: "+data)
-                    }
-                });
-            }
-        }
         $(document).ready(function() {
             HesGallery.init({
                 disableScrolling: false,
@@ -176,6 +164,8 @@
             </div>
         </div>
 
+        <div id="confirm-dialog"></div>
+
         <div id="loading_spinner_overlay" class="loading_spinner_overlay" style="display:none;">
             <img id="loading_spinner" class="loading_image" src="{{ url_for('static', filename="images/loading.gif")}}"/>
             <br/>