feat: show no runners available

options/locale/locale_en-US.ini

@@ -3271,6 +3271,7 @@ runners.delete_runner_failed = Failed to delete runner
 runners.delete_runner_header = Confirm to delete this runner
 runners.delete_runner_notice = If a task is running on this runner, it will be terminated and mark as failed. It may break building workflow.
 runners.delete_runner_confirm = Delete this runner
+runners.none = No runners available
 runners.status.unspecified = Unknown
 runners.status.idle = Idle
 runners.status.active = Active

templates/shared/actions/runner_list.tmpl

@@ -55,6 +55,7 @@
 				</tr>
 			</thead>
 			<tbody>
+				{{if .Runners}}
 					{{range .Runners}}
 					<tr>
 						<td>
@@ -87,6 +88,11 @@
 						</td>
 					</tr>
 					{{end}}
+				{{else}}
+					<tr>
+						<td class="center aligned" colspan="6">{{.locale.Tr "actions.runners.none"}}</td>
+					</tr>
+				{{end}}
 			</tbody>
 		</table>
 	</div>