Optimize some functions.

Hi Dear Lord,
Here’s a new update with fixes to improve your game experience!
1. Prestige Castle is officially launched!
- New castle appearance
- Building prestige level
- Prestige soldier
2. The value of items in Dragon's Gift Event has been increased.
3. Fix some bugs
- Flags of some countries cannot be changed
- The power of Agathocles is abnormal
- The increase in power of rampart from level 11 to level 12 is abnormal.
- The problem to view the battle reports of Anubis.

Here’s a new update with fixes to improve your game experience!

Here’s a new update with fixes to improve your game experience!

Here’s a new update with fixes to improve your game experience!