Add ShopSync support (#26) ...

* feat: add shopSync options to config.example.lua

* docs: document shopSync settings

* feat: get as much of the shopsync support done as possible before I go to work

* fix: typos, version.txt finding & gps

* feat: broadcast products in ShopSync message

* chore: revert repo owner in installer.lua

* chore: remove unneccesary .gitignore entry I made

* fix: missing comma in config

* style: extract ctx.config.shopSync to it's own variable, remove rendundant parenthesis

* refactor: create utils.isNullish helper, improve how GPS location is stored & move enabled check to init.lua

* fix: my stupidity

* fix: backwards compatibility with older configs

* fix: shopsync no longer initially reports 0 stock

* fix: wait for chests to be refreshed instead of doing it ourselves

feat: Add webhook events

feat: Make refunds make on SwitchCraft

feat: Attempt to add non 64 stackable itemse

Autist69420: Introduce more lua-language-server/EmmyLua annotations (#7) ...

Changes done by Autist69420:

* chore: Update kristly library

This updates the included kristly library to commit
`066ea3c`

* feat: Add lua-language-server annotations to logger file

This commit provides in-line documentation for the logger.

* feat: Add lua-language-server annotations for utils file

This commit provides in-line documentation for the utilities file

* fix: Fix wrong annotation type in utilities file

This was a stupid oversight.

Do lots of stuff that needs to be improved