feat(nav): tabs, list views and name searches are named in the address

Settings, Configuration and Users name their tab (stab/cfgtab/utab); a link's tab wins and a tab pre-selected
while its page is on screen now switches it. A playlist's sort, filters and grouping (plsort/plf/plgroup), the
Files sort (fsort, always written) and the name searches of Channels, Files, Playlists and Plex (cq/fq/plq/pq+pqf)
reopen from the address; the searches are written once the typing pauses.

frontend/src/modules/plex/module.ts

@@ -1,7 +1,7 @@
 import { Clapperboard } from "lucide-react";
 import { lazyWithPreload, lazyWithPreloadAlongside } from "../../lib/lazyWithPreload";
 import type { ModuleDef } from "../../lib/moduleDef";
-import { PLEX_KEYS, PLEX_SUB_KEY } from "../../lib/plexUrlState";
+import { PLEX_KEYS, PLEX_SEARCH_KEYS, PLEX_SUB_KEY } from "../../lib/plexUrlState";
 import { PlexStore } from "./PlexStore";
 
 // The rail loads with the page (lazyWithPreloadAlongside), so it never arrives after it.
@@ -18,5 +18,5 @@ export const plexModule: ModuleDef = {
   Page: lazyWithPreloadAlongside(() => import("./PlexBrowse"), Rail),
   maxWidth: "100rem",
   Store: PlexStore,
-  urlKeys: [...PLEX_KEYS, PLEX_SUB_KEY],
+  urlKeys: [...PLEX_KEYS, ...PLEX_SEARCH_KEYS, PLEX_SUB_KEY],
 };