chore: add eslint

backend/src/file/dto/file.dto.ts

@@ -11,9 +11,6 @@ export class FileDTO {
   @Expose()
   size: string;
 
-  @Expose()
-  url: boolean;
-
   share: ShareDTO;
 
   from(partial: Partial<FileDTO>) {

backend/src/file/file.module.ts

@@ -1,7 +1,6 @@
 import { Module } from "@nestjs/common";
 import { JwtModule } from "@nestjs/jwt";
 import { ShareModule } from "src/share/share.module";
-import { ShareService } from "src/share/share.service";
 import { FileController } from "./file.controller";
 import { FileService } from "./file.service";