Refactor backend and add exception handlers (#189)

server/src/app.module.ts

@@ -1,5 +1,4 @@
 import { Module } from '@nestjs/common';
-import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { HealthController } from './health.controller';
 import { TerminusModule } from '@nestjs/terminus';
@@ -9,7 +8,7 @@ import { ConfigModule } from '@nestjs/config';
 import { ApiModule } from './api/api.module';
 @Module({
   imports: [ConfigModule.forRoot({}), TerminusModule, AuthModule, ApiModule],
-  controllers: [AppController, HealthController],
+  controllers: [HealthController],
   providers: [AppService],
 })
 export class AppModule {}