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/constants/settings/index.ts

@@ -0,0 +1,9 @@
+import { Settings } from './interfaces/settings.interface';
+
+export const settings: Settings = {
+  storage: {
+    imageCropSizes: {
+      profilePicture: ['original'],
+    },
+  },
+};

server/src/constants/settings/interfaces/settings.interface.ts

@@ -0,0 +1,12 @@
+import { FileFolder } from 'src/core/file/interfaces/file-folder.interface';
+import { ShortCropSize } from 'src/utils/image';
+
+type ValueOfFileFolder = `${FileFolder}`;
+
+export interface Settings {
+  storage: {
+    imageCropSizes: {
+      [key in ValueOfFileFolder]: ShortCropSize[];
+    };
+  };
+}