feat: replace direct player with web browser for search results

- Add BrowserActivity with WebView, toolbar (back/forward/close), URL bar, progress bar
- SearchFragment: open BrowserActivity instead of PlayerActivity on result click
- Browser allows user to browse the video site directly before choosing to play

app/src/main/java/com/videoapp/tv/ui/SearchFragment.kt

@@ -19,7 +19,7 @@ import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.videoapp.tv.R
-import com.videoapp.tv.PlayerActivity
+import com.videoapp.tv.BrowserActivity
 import com.videoapp.tv.SettingsActivity
 import com.videoapp.tv.data.AppDatabase
 import com.videoapp.tv.data.SearchHistory
@@ -185,10 +185,9 @@ class SearchFragment : Fragment() {
     }
 
     private fun openPlayer(result: SearchResult) {
-        val intent = Intent(requireContext(), PlayerActivity::class.java).apply {
-            putExtra("detail_url", result.detailUrl)
+        val intent = Intent(requireContext(), BrowserActivity::class.java).apply {
+            putExtra("url", result.detailUrl)
             putExtra("title", result.title)
-            putExtra("category", result.category)
         }
         startActivity(intent)
     }