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/install/user.html

@@ -2,7 +2,7 @@
     {installer-nav}
     <div class="row justify-content-center">
         <div class="col-md-10 pt-4">
-            <form action="" method="post" class="form-horizontal">
+            <form method="post">
                 <fieldset>
                     <div class="mb-3 col-md-4 offset-md-4">
                         <label for="newUsername" class="form-label">Username:</label>