🚧 Book clubs and user permissions

[aaronleopold]

This rather massive PR does a lot, and there are very likely breaking changes, but I'll overview the highlights below:

• Development towards the book club features #120 (WIP)
  • API is exposed, but UI is hidden. I cannot promise hard breaking changes to the DB structure wrt this feature won't be made after this PR, since I will be merging before it reaches a viable state, so if you bypass the hidden UI elements or interact with the API directly it is at your own risk. So long as you don't create a book club, it should be fine (👀)
• Created new rust app for handling all of the code generation
  • This was a well needed chore, was a bit of a hassle managing two type exports and Prisma client generation
  • Merged generated TypeScript types now go to a single generated.ts file
• Development towards a proper user permission model, where the server owner can grant various permissions to any given account https://github.com/stumpapp/stump/issues/41
  • Note that this won't really be an RBAC model, as roles aren't really required here. The trade off is a little verbosity for more granular control
• Small updates to the file explorer UI
• New Calendar and DatePicker components to support book club features

There is still a bit more work to get through wrt the permissions, but I'll aim to wrap it up and merge this either this or next weekend

User update/creation form

🚧 Breaking changes

Mainly server_preferences table was renamed to server_config. Once I start versioning Stump, I'll take more care in the migrations to not let a change like this break anything. The worst that should happen would be your job scheduler config needs to be recreated