chore(settings): Rename "User backend" to "Account backend"

Signed-off-by: Christopher Ng <chrng8@gmail.com>

apps/settings/src/components/Users/UserListHeader.vue

@@ -81,7 +81,7 @@
 			data-cy-user-list-header-storage-location
 			scope="col">
 			<span v-if="showConfig.showUserBackend">
-				{{ t('settings', 'User backend') }}
+				{{ t('settings', 'Account backend') }}
 			</span>
 			<span v-if="showConfig.showStoragePath"
 				class="header__subtitle">