feat(oauth): Add option to logout from OpenID Connect provider

* Fixes #598

Signed-off-by: Marvin A. Ruder <signed@mruder.dev>

backend/src/auth/auth.module.ts

@@ -1,4 +1,4 @@
-import { Module } from "@nestjs/common";
+import { forwardRef, Module } from "@nestjs/common";
 import { JwtModule } from "@nestjs/jwt";
 import { EmailModule } from "src/email/email.module";
 import { AuthController } from "./auth.controller";
@@ -7,6 +7,7 @@ import { AuthTotpService } from "./authTotp.service";
 import { JwtStrategy } from "./strategy/jwt.strategy";
 import { LdapService } from "./ldap.service";
 import { UserModule } from "../user/user.module";
+import { OAuthModule } from "../oauth/oauth.module";
 
 @Module({
   imports: [
@@ -14,6 +15,7 @@ import { UserModule } from "../user/user.module";
       global: true,
     }),
     EmailModule,
+    forwardRef(() => OAuthModule),
     UserModule,
   ],
   controllers: [AuthController],