Add more social providers to Wasp Auth

[Martin Šošić]

Discussed in #1996

^{Originally posted by Reikon95 April 26, 2024}
As part of a SaaS idea I have, it'd be really helpful to allow signin with tiktok, particularly as their API is very locked down unless the user is authenticated through them (which can be done another way elsewhere, but it'd be really helpful to just tie it in with auth)

[Martin Šošić]

Thanks @Reikon95! I moved this to issues as it is easier for us to track this way, and we will be adding this at some point for sure!