style: apply prettier across fork files

check:prettier was not part of my gate routine, so formatting drift accumulated
across the session's touched files (and a few older ones). Run prettier --write
to bring the repo back to 'All matched files use Prettier code style!'.
Formatting only — no logic changes. tsc/tests/build all green.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/features/bookmarks/BookmarksPanel.tsx

@@ -1,11 +1,4 @@
-import React, {
-  ChangeEvent,
-  ReactNode,
-  useCallback,
-  useEffect,
-  useMemo,
-  useState,
-} from 'react';
+import React, { ChangeEvent, ReactNode, useCallback, useEffect, useMemo, useState } from 'react';
 import { Room } from 'matrix-js-sdk';
 import { useAtom } from 'jotai';
 import { atomWithStorage, createJSONStorage } from 'jotai/utils';