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/layout.tsx

@@ -12,6 +12,9 @@ import { Metadata, Viewport } from "next";
 import { ViewTransitions } from "next-view-transitions";
 import { ToastContainer } from "react-toastify";
 
+// Force dynamic rendering untuk menghindari error prerendering
+export const dynamic = 'force-dynamic';
+
 // ✅ Pisahkan viewport ke export tersendiri
 export const viewport: Viewport = {
   width: "device-width",