Various changes

mobile-friendly ui updates
admin user-edit bugfix
file cleanup
added searchFields
add blog search
remove unused code
add maintenance mode config

app/views/footer/social.html

@@ -1,3 +1,4 @@
+<div class="d-flex justify-content-center justify-content-md-end mt-3 mt-md-0">
 <ul class="list-unstyled d-flex mb-0">
     <li class="ms-3">
         <a class="context-main" href="{ROOT_URL}fb">
@@ -24,4 +25,5 @@
             <span class="fa-brands fa-fw fa-github"></span>
         </a>
     </li>
-</ul>
+    </ul>
+</div>