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I refactored by making some changes on the application! What's new with this refactor;

• Adding datasource layer.
• Multiple repository structure for each fragment structure instead of single repository layer
• Unit test was written for each repository.
• Simple UI test added 🎉
• The package structure of the application has been arranged.
• Data classes renewed.
• Retrofit version upgraded. Coroutine adapter and kotlin serialization deleted. Gson is added.

• Created media player with ExoPlayer.
• ExoPlayer scenarios were simply tried.

Favorites page added. Share and Favorite buttons have been activated.