1.02 Release

Touhou 18.5 support, category rearrangement, and Japanese translation.

Added: Touhou 18.5 support.
Added: Complete Japanese translation. (Courtesy of HoengSaan)
Added: Error when adding custom game without a category.
Added: Queue for fetching repos so servers aren't overloaded. Lowers refresh speed.
Changed: Rearranged the game categories: Separated the PC-98 games into their own category and renamed the fighting category to games by Twilight Frontier.
Changed: Moved Gouyoku Ibun to the Twilight Frontier category.
Changed: Made instructions more clear when launching a game that isn't set up. (Russian translation pending)
Changed: Updated .Net Framework target to 4.8
Changed: Simplified repo search to use tasks.
Changed: Changed default repo to the official server on the Touhou Patch Center.
Removed: Upwards repository crawl.