implement new invitation system

* fix comments on the frontend
* move jwt token service to its own module
* other fixes and updates

apps/server/src/core/auth/token.module.ts

@@ -0,0 +1,24 @@
+import { Module } from '@nestjs/common';
+import { JwtModule } from '@nestjs/jwt';
+import { EnvironmentService } from '../../integrations/environment/environment.service';
+import { TokenService } from './services/token.service';
+
+@Module({
+  imports: [
+    JwtModule.registerAsync({
+      useFactory: async (environmentService: EnvironmentService) => {
+        return {
+          secret: environmentService.getAppSecret(),
+          signOptions: {
+            expiresIn: environmentService.getJwtTokenExpiresIn(),
+            issuer: 'Docmost',
+          },
+        };
+      },
+      inject: [EnvironmentService],
+    }),
+  ],
+  providers: [TokenService],
+  exports: [TokenService],
+})
+export class TokenModule {}