Align import and property formatting in files.dto.ts

Change import statements to use double quotes for consistency and adjust property indents to match standard. These modifications improve code readability and maintain uniform coding style throughout the file.

apps/backend/src/app/files/files.dto.ts

@@ -1,6 +1,5 @@
-import { IsUUID, MaxLength, MinLength } from 'class-validator';
-import { DefaultValuePipe } from '@nestjs/common';
-
+import { DefaultValuePipe } from "@nestjs/common";
+import { IsUUID, MaxLength, MinLength } from "class-validator";
 
 export class CreateFilesDto {
 	@MaxLength(128)