(etke.cc-exclusive) Server Actions page (#457)

* WIP: add scheduler commands

* refactor scheduler commands page

* WIP on CRUD for ScheduledCommands

* more refactoring, finish CRUD On scheduled pages

* Add info text about Scheduler service

* Finish recurring commands add/edit

* add more texts

* fix server status behavior on not-loaded-yet state; adjust texts; lint fixes

* add link to the help pages in the commands palette

* Move Commands Panel to ServerSchedulesPage

* Rename Server Schedules to Server Actions

* more texts, a bit changed visual of the actions page, lint fix

* add docs

* fix tests

* Add UTC label to scheduled command create/edit

src/components/etke.cc/schedules/hooks/useScheduledCommands.tsx

@@ -0,0 +1,15 @@
+import { useQuery } from "@tanstack/react-query";
+import { useDataProvider } from "react-admin";
+
+import { useAppContext } from "../../../../Context";
+
+export const useScheduledCommands = () => {
+  const { etkeccAdmin } = useAppContext();
+  const dataProvider = useDataProvider();
+  const { data, isLoading, error } = useQuery({
+    queryKey: ["scheduledCommands"],
+    queryFn: () => dataProvider.getScheduledCommands(etkeccAdmin),
+  });
+
+  return { data, isLoading, error };
+};