refactor: reorganize MailerModule and HandlebarsAdapter imports in app.module.ts

Author: tomast1337

server/src/app.module.ts

@@ -1,6 +1,8 @@
 import { Logger, Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { MongooseModule, MongooseModuleFactoryOptions } from '@nestjs/mongoose';
+import { MailerModule } from '@nestjs-modules/mailer';
+import { HandlebarsAdapter } from '@nestjs-modules/mailer/dist/adapters/handlebars.adapter';
 
 import { AuthModule } from './auth/auth.module';
 import { validate } from './config/EnvironmentVariables';
@@ -12,8 +14,6 @@ import { SeedModule } from './seed/seed.module';
 import { SongModule } from './song/song.module';
 import { SongBrowserModule } from './song-browser/song-browser.module';
 import { UserModule } from './user/user.module';
-import { MailerModule } from '@nestjs-modules/mailer';
-import { HandlebarsAdapter } from '@nestjs-modules/mailer/dist/adapters/handlebars.adapter';
 
 @Module({
   imports: [