Purge Facebook (#13696)

* Don't sign in user when trying to connect a social account that was already created

* Log social users into matching local auth accounts

If the social account has an email that already exists as a local user, instead of creating a new account log them into their account and add the social auth to the account

* If possible set local authentication email for social users

* Allow password reset emails to be sent to social login users

* lint fixes

* Fix issues and tests

* fix tests

* Fix lint error.

* purge Facebook.

Only keep it in some select places to allow for some compatablilty.

* Fix error

* fix error

* Let settings handle it when you don't have a password set but an email

* fix error

* Fix boolean logic

* fix json conversion

* .

* fix password reset for old social accounts

* Don't sign in user when trying to connect a social account that was already created

* Log social users into matching local auth accounts

If the social account has an email that already exists as a local user, instead of creating a new account log them into their account and add the social auth to the account

* If possible set local authentication email for social users

* Allow password reset emails to be sent to social login users

* lint fixes

* Fix issues and tests

* fix tests

* Fix lint error.

* purge Facebook.

Only keep it in some select places to allow for some compatablilty.

* Fix error

* fix error

* Let settings handle it when you don't have a password set but an email

* fix error

* Fix boolean logic

* fix json conversion

* fix password reset for old social accounts

* Revert "lint fixes"

This reverts commit c244b1651c.

# Conflicts:
#	website/client/src/components/auth/registerLoginReset.vue
#	website/client/src/components/static/contact.vue

* Revert "fix password reset for old social accounts"

This reverts commit 7e0069a80f.

* fix duplicate code

* chore(misc): remove irrelevant changes

* chore(privacy): update policy page with note about FB

Co-authored-by: SabreCat <sabe@habitica.com>

test/api/unit/libs/password.test.js

@@ -246,7 +246,7 @@ describe('Password Utilities', () => {
     it('returns false if the user has no local auth', async () => {
       const user = await generateUser({
         auth: {
-          facebook: {},
+          google: {},
         },
       });
       const res = await validatePasswordResetCodeAndFindUser(encrypt(JSON.stringify({