Fix Javascript issue on non sqlite databases

When a non sqlite database is used, loading the admin interface fails
because the backup button is not generated.
This PR is solves it by checking if the elements are valid.

Also made some other changes and fixed some eslint errors.
Showing `_post` errors is better now.

Update jquery to latest version.

Fixes #3166

src/static/templates/admin/organizations.hbs

@@ -5,10 +5,10 @@
             <table id="orgs-table" class="table table-sm table-striped table-hover">
                 <thead>
                     <tr>
-                        <th>Organization</th>
-                        <th>Users</th>
-                        <th>Items</th>
-                        <th>Attachments</th>
+                        <th class="vw-org-details">Organization</th>
+                        <th class="vw-users">Users</th>
+                        <th class="vw-items">Items</th>
+                        <th class="vw-attachments">Attachments</th>
                         <th class="vw-actions">Actions</th>
                     </tr>
                 </thead>
@@ -38,7 +38,7 @@
                             {{/if}}
                         </td>
                         <td class="text-end px-0 small">
-                            <button type="button" class="btn btn-sm btn-link p-0 border-0" vw-delete-organization data-vw-org-uuid="{{jsesc Id no_quote}}" data-vw-org-name="{{jsesc Name no_quote}}" data-vw-billing-email="{{jsesc BillingEmail no_quote}}">Delete Organization</button>
+                            <button type="button" class="btn btn-sm btn-link p-0 border-0 float-right" vw-delete-organization data-vw-org-uuid="{{jsesc Id no_quote}}" data-vw-org-name="{{jsesc Name no_quote}}" data-vw-billing-email="{{jsesc BillingEmail no_quote}}">Delete Organization</button>
                         </td>
                     </tr>
                     {{/each}}
@@ -53,7 +53,7 @@
 </main>
 
 <link rel="stylesheet" href="{{urlpath}}/vw_static/datatables.css" />
-<script src="{{urlpath}}/vw_static/jquery-3.6.2.slim.js"></script>
+<script src="{{urlpath}}/vw_static/jquery-3.6.3.slim.js"></script>
 <script src="{{urlpath}}/vw_static/datatables.js"></script>
 <script src="{{urlpath}}/vw_static/admin_organizations.js"></script>
 <script src="{{urlpath}}/vw_static/jdenticon.js"></script>