refactor(musik): integrate music player library functions and fix build errors

- Integrate togglePlayPause, getNextIndex, getPrevIndex, handleRepeatOrNext, seekTo, toggleShuffle, setAudioVolume, toggleMute library functions
- Fix ESLint warnings: remove unused eslint-disable, add missing useEffect dependencies
- Fix ESLint error in useMusicPlayer.ts togglePlayPause function
- Add force-dynamic export to root layout to prevent prerendering errors
- Improve seek slider with preview/commit functionality
- Add isSeeking state to prevent UI flickering during seek

Fixes: Build PageNotFoundError for admin/darmasaba pages

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/app/darmasaba/(pages)/musik/lib/shuffle.ts

@@ -0,0 +1,6 @@
+export function toggleShuffle(
+  isShuffle: boolean,
+  setIsShuffle: (v: boolean) => void
+) {
+  setIsShuffle(!isShuffle);
+}