remove unnecessary extra header

src/components/settings_modal/admin_tabs/users_tab.scss

@@ -20,7 +20,7 @@
     flex-direction: column;
     gap: 1em;
     border-right: 1px solid var(--border);
-    padding: 0 1em;
+    padding: 1em;
     margin-right: 1em;
     overflow: auto visible;
     flex: 0 0 auto;

src/components/settings_modal/admin_tabs/users_tab.vue

@@ -3,9 +3,6 @@
     class="UsersTab"
     :label="$t('admin_dash.users.management')"
   >
-    <h3>
-      {{ $t('admin_dash.users.title') }}
-    </h3>
     <div class="splitter">
       <div class="filters-section">
         <label class="filter">