Feature:
1. Monsters need to be discovered and defeated before they can be unlocked
2. Discover new monster UI
3. Desert level corresponds to BGM
4.Add reset game button
5. You can get corresponding Chaos Fragments and money when you clear the level in Classic Mode
bugfix:
1. Fixed the translation problem of the back button in the game selection mode
2.Fixed that the screen can be dragged arbitrarily after clicking the leave button at the beginning of the game to return
3.Fixed the problem that new monsters cannot be displayed correctly (if this problem still exists, please click the reset game button to fix it)