Demo Version 0.2 Update

Added a macOS version.

Swapped Difficulty 2 and Difficulty 3.

Adjusted National Strength Check requirements for some Rounds.

Updated several Tile effects:

1. Mountain now increases the Production of surrounding Tiles.

2. Strange Woods now grants Luck to surrounding Tiles.

3. Removed Grain Bureau’s Seasonal Effect.

4. Adjusted numerical values for several effects.

Fix bugs.