Update VSCode LuaLS FAQ

[Erb3]

The FAQ for adding cc-tweaked support to the language server is a bit outdated. Context: faqs/vscode.md. There is a cc-tweaked LuaLS addon on GitLab: carsakiller/cc-tweaked-documentaion. This addon is also included in the LuaLS Addon Manager in VSCode by default.

Alternatively there is a forked called nvim-computercraft/lua-ls-cc-tweaked, but it is less maintained and has an unknown future (nvim-computercraft/lua-ls-cc-tweaked#18).

Looking to hear other solutions

[SquidDev]

Not really related to the FAQ changes, but maybe the best thing to do is XKCD 927 this, and roll an official CC:T one. It feels like it should be relatively easy to automatically generate the stub files from illuaminate.