Move reload/restart/shutdown into an Acties menu in the top bar

The actions are now on every page in the same place instead of a button
row that differed per page.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_web.py

@@ -298,3 +298,10 @@ def test_admin_port_change_restarts_manager(logged_in, fake_helper, paths):
     assert resp.status_code == 200 and ":8443/" in resp.get_data(as_text=True)
     assert fake_helper.calls[-1][0] == "restart-manager"
     assert load_config(paths.config_file)["admin_port"] == 8443
+
+
+@pytest.mark.parametrize("path", ["/", "/kiosk", "/system", "/network", "/logs", "/account/password"])
+def test_actions_menu_on_every_page(logged_in, path):
+    html = logged_in.get(path).get_data(as_text=True)
+    for action in ("/kiosk/reload", "/kiosk/restart", "/system/reboot", "/system/poweroff"):
+        assert f'action="{action}"' in html