Wider Stats Screen (扩展统计屏幕)

- Update to 1.20

- Config loading improvements:
- Mod will now only reload config when you open the Items section of the stats screen.
- Fixed game crashing if the config file has empty lines
- Mod will now automatically fix config files that are missing option(s).
- (Currently there is only one option, but there may be more in the future.)

- Width of the items list is now configurable!
- Currently no in-game GUI (future addition maybe), but you can find the configuration at `.minecraft/config/wider-stats-screen.txt`.
- The config will automatically reload when you click on the "Items" button in the stats menu.
- (It also reloads if you click either of the other buttons, but I don't want to spend forever figuring out a somewhat complex mixin to fix this, maybe will look into this more later)
- Reduced the default width to 1.75x from 2x to be more compatible with no tweaking. If you liked it how it was before, simply edit the config file back to 2.
- Internally bumped to 1.19.4, although should still work on 1.19.x.

Mod should be in usable state but I'm gonna make a few tweaks before final v0.1

Update 2023-03-22: Just tested with 1.19.4 and it looks like it works with no changes, so I'm marking this download as compatible. v0.1 proper will come soon.