feat: upload module (#486)

* feat: wip upload module

* feat: local storage and serve local images

* feat: protect against injections

* feat: server local and s3 files

* fix: use storage location when serving local files

* feat: cross field env validation

server/src/core/file/interfaces/file-folder.interface.ts

@@ -0,0 +1,9 @@
+import { registerEnumType } from '@nestjs/graphql';
+
+export enum FileFolder {
+  ProfilePicture = 'profilePicture',
+}
+
+registerEnumType(FileFolder, {
+  name: 'FileFolder',
+});