Database changes to make it better practise

server/src/entities/index.ts

@@ -1,5 +1,7 @@
 export { AuthUserEntity } from './AuthUserEntity';
 export { ServerEntity } from './ServerEntity';
+export { ServerTagEntity } from './ServerTagEntity';
+export { ServerChannelEntity } from './ServerChannelEntity';
 export { JoinRequestEntity } from './JoinRequestEntity';
 export { ServerMembershipEntity } from './ServerMembershipEntity';
 export { ServerInviteEntity } from './ServerInviteEntity';