Fix #17944 - unable to create a view from tree view button

- Add the modal to the navigation panel
- Prevent modals to be removed on navigation bar is replaced

Signed-off-by: William Desportes <williamdes@wdes.fr>

js/src/ajax.js

@@ -509,6 +509,7 @@ var AJAX = {
                 // Remove all containers that may have
                 // been added outside of #page_content
                 $('body').children()
+                    .not("div.modal")
                     .not('#pma_navigation')
                     .not('#floating_menubar')
                     .not('#page_nav_icons')

templates/navigation/main.twig

@@ -95,4 +95,5 @@
     {% endif %}
   </div>
   {{ include('modals/unhide_nav_item.twig') }}
+  {{ include('modals/create_view.twig') }}
 {% endif %}