feat: custom branding (#112)

* add first concept

* remove setup status

* split config page in multiple components

* add custom branding docs

* add test email button

* fix invalid email from header

* add migration

* mount images to host

* update docs

* remove unused endpoint

* run formatter

backend/src/auth/auth.service.ts

@@ -25,7 +25,7 @@ export class AuthService {
   ) {}
 
   async signUp(dto: AuthRegisterDTO) {
-    const isFirstUser = this.config.get("SETUP_STATUS") == "STARTED";
+    const isFirstUser = (await this.prisma.user.count()) == 0;
 
     const hash = await argon.hash(dto.password);
     try {
@@ -38,10 +38,6 @@ export class AuthService {
         },
       });
 
-      if (isFirstUser) {
-        await this.config.changeSetupStatus("REGISTERED");
-      }
-
       const { refreshToken, refreshTokenId } = await this.createRefreshToken(
         user.id
       );
@@ -161,7 +157,7 @@ export class AuthService {
       },
       {
         expiresIn: "15min",
-        secret: this.config.get("JWT_SECRET"),
+        secret: this.config.get("internal.jwtSecret"),
       }
     );
   }