GitLab

- '/documentation': home page with all links
- '/documentation/handbook': html version of the gm handbook
- '/documentation/gachamapping': json document with the gacha mappings

* Fix punctuation & update zh-CN.json

* Fix error

Fix "Attempt to get java.util.List field 'PacketOpcodes.BANNED_PACKETS' with illegal data type conversion to int"

* Autogenerate keys and data files

* Update gacha html files

Accidentally pushed with old html files

* Keys no longer copied. No more manually retrieving listing files. Recursive directory creation

Removed unused code from old GC as well.

* Moved somethings and better errors

* Fixed resources from loading twice

* Data files fallback

* Remove the extra slash

* Update src/main/java/emu/grasscutter/Configuration.java
Co-authored-by: HotaruYS <105128850+HotaruYS@users.noreply.github.com>

* Update src/main/java/emu/grasscutter/Configuration.java
Co-authored-by: HotaruYS <105128850+HotaruYS@users.noreply.github.com>

* Update src/main/java/emu/grasscutter/Configuration.java
Co-authored-by: HotaruYS <105128850+HotaruYS@users.noreply.github.com>

* Import java.nio.file.Paths to use Paths.get

* Mark fields as private to prevent use *FOLDER directly

* Remove unnecessary slash
Co-authored-by: HotaruYS <105128850+HotaruYS@users.noreply.github.com>