feat(auth): add OAuth2 login (#276)

* feat(auth): add OAuth2 login with GitHub and Google

* chore(translations): add files for Japanese

* fix(auth): fix link function for GitHub

* feat(oauth): basic oidc implementation

* feat(oauth): oauth guard

* fix: disable image optimizations for logo to prevent caching issues with custom logos

* fix: memory leak while downloading large files

* chore(translations): update translations via Crowdin (#278)

* New translations en-us.ts (Japanese)

* New translations en-us.ts (Japanese)

* New translations en-us.ts (Japanese)

* release: 0.18.2

* doc(translations): Add Japanese README (#279)

* Added Japanese README.

* Added JAPANESE README link to README.md.

* Updated Japanese README.

* Updated Environment Variable Table.

* updated zh-cn README.

* feat(oauth): unlink account

* refactor(oauth): make providers extensible

* fix(oauth): fix discoveryUri error when toggle google-enabled

* feat(oauth): add microsoft and discord as oauth provider

* docs(oauth): update README.md

* docs(oauth): update oauth2-guide.md

* set password to null for new oauth users

* New translations en-us.ts (Japanese) (#281)

* chore(translations): add Polish files

* fix(oauth): fix random username and password

* feat(oauth): add totp

* fix(oauth): fix totp throttle

* fix(oauth): fix qrcode and remove comment

* feat(oauth): add error page

* fix(oauth): i18n of error page

* feat(auth): add OAuth2 login

* fix(auth): fix link function for GitHub

* feat(oauth): basic oidc implementation

* feat(oauth): oauth guard

* feat(oauth): unlink account

* refactor(oauth): make providers extensible

* fix(oauth): fix discoveryUri error when toggle google-enabled

* feat(oauth): add microsoft and discord as oauth provider

* docs(oauth): update README.md

* docs(oauth): update oauth2-guide.md

* set password to null for new oauth users

* fix(oauth): fix random username and password

* feat(oauth): add totp

* fix(oauth): fix totp throttle

* fix(oauth): fix qrcode and remove comment

* feat(oauth): add error page

* fix(oauth): i18n of error page

* refactor: return null instead of `false` in `getIdOfCurrentUser` functiom

* feat: show original oauth error if available

* refactor: run formatter

* refactor(oauth): error message i18n

* refactor(oauth): make OAuth token available
someone may use it (to revoke token or get other info etc.)
also improved the i18n message

* chore(oauth): remove unused import

* chore: add database migration

* fix: missing python installation for nanoid

---------

Co-authored-by: Elias Schneider <login@eliasschneider.com>
Co-authored-by: ふうせん <10260662+fusengum@users.noreply.github.com>

backend/prisma/schema.prisma

@@ -14,7 +14,7 @@ model User {
 
   username String  @unique
   email    String  @unique
-  password String
+  password String?
   isAdmin  Boolean @default(false)
 
   shares        Share[]
@@ -26,6 +26,8 @@ model User {
   totpVerified       Boolean             @default(false)
   totpSecret         String?
   resetPasswordToken ResetPasswordToken?
+
+  oAuthUsers OAuthUser[]
 }
 
 model RefreshToken {
@@ -60,6 +62,15 @@ model ResetPasswordToken {
   user   User   @relation(fields: [userId], references: [id], onDelete: Cascade)
 }
 
+model OAuthUser {
+  id               String @id @default(uuid())
+  provider         String
+  providerUserId   String
+  providerUsername String
+  userId           String
+  user             User   @relation(fields: [userId], references: [id], onDelete: Cascade)
+}
+
 model Share {
   id        String   @id @default(uuid())
   createdAt DateTime @default(now())
@@ -134,7 +145,7 @@ model Config {
   name         String
   category     String
   type         String
-  defaultValue String @default("")
+  defaultValue String  @default("")
   value        String?
   obscured     Boolean @default(false)
   secret       Boolean @default(true)