clarify what "query" actually does

src/components/settings_modal/admin_tabs/users_tab.vue

@@ -10,7 +10,7 @@
       <div class="filters-section">
         <label class="filter">
           <div class="query-label">
-            {{ $t('admin_dash.users.labels.query') }}
+            {{ $t('admin_dash.users.labels.nickname') }}
           </div>
           <input
             v-model="filtersQuery"

src/i18n/en.json

@@ -1297,7 +1297,8 @@
       "local_id": "Local ID",
       "labels": {
         "query": "Search",
-        "name": "Name",
+        "nickname": "@handle",
+        "name": "Display Name",
         "name_colon": "Name:",
         "email": "Email",
         "email_colon": "Email:",