fix: keep PBS logs and maintenance jobs readable

- Draw ZFS ARC only from recorded history, leaving it out on PBS
- Read the maintenance jobs of a local PBS from its API, with their last state
- Show the OK state of PBS jobs in green whatever its case
- Compress rotated logs at once in the Log2RAM and logrotate profiles
- Offer the Log2RAM 1.8 and logrotate 1.2 update to existing installations

AppImage/components/pbs-panel.tsx

@@ -54,9 +54,10 @@ function taskState(task: Task): keyof typeof badgeTone {
   return "error"
 }
 
+// PBS reports "OK", "WARNINGS: n" or the error text of the last run.
 function jobState(state?: string): keyof typeof badgeTone {
   if (!state) return "muted"
-  if (state === "ok") return "ok"
+  if (state.toLowerCase() === "ok") return "ok"
   if (state.toLowerCase().startsWith("warn")) return "warn"
   return "error"
 }