treefmt: apply prettier

Pure `nix fmt` output from the commit before this one — no hand edits.
203 files: 52 md, 42 tsx, 32 js, 32 css, 21 ts, 13 html, 8 json, 3 mjs.

Reproduce with `nix develop -c nix fmt` on the parent commit; the result
should be byte-identical to this tree.

None of the 13 `.prettierignore` entries appears here — verified by
intersecting the changed-file list against the ignore file, with a
control proving the intersection finds a match when one exists.

frontend/packages/shared/src/settings/settings-storage.ts

@@ -14,7 +14,7 @@
 // reading) need their own same-tab signal. The tiny module-level pub/sub
 // below is that signal; it's deliberately not exported, callers only see
 // the hook.
-import { useEffect, useState } from 'preact/hooks';
+import { useEffect, useState } from "preact/hooks";
 
 const listeners = new Map<string, Set<() => void>>();
 
@@ -70,10 +70,16 @@ function writeLocalSetting<T>(key: string, value: T): void {
 // this component's state through the identical "react to a change"
 // path every other subscriber uses — one path, not two that have to
 // agree.
-export function useLocalSetting<T>(key: string, fallback: T): [T, (value: T) => void] {
+export function useLocalSetting<T>(
+  key: string,
+  fallback: T,
+): [T, (value: T) => void] {
   const [value, setValue] = useState<T>(() => readLocalSetting(key, fallback));
 
-  useEffect(() => subscribe(key, () => setValue(readLocalSetting(key, fallback))), [key]);
+  useEffect(
+    () => subscribe(key, () => setValue(readLocalSetting(key, fallback))),
+    [key],
+  );
 
   return [value, (next: T) => writeLocalSetting(key, next)];
 }