Work on general UI for user files

app/imports/api/files/UserImages.js

@@ -0,0 +1,18 @@
+import { createS3FilesCollection } from '/imports/api/files/s3FileStorage.js';
+
+const UserImages = createS3FilesCollection({
+  collectionName: 'userImages',
+  storagePath: Meteor.isDevelopment ? '/DiceCloud/userImages/' : 'assets/app/userImages',
+  onBeforeUpload(file) {
+    // Allow upload files under 10MB
+    if (file.size > 10485760) {
+      return 'Please upload with size equal or less than 10MB';
+    }
+    // Allow common image extensions
+    if (/gif|png|jpe?g|webp/i.test(file.extension || '')) {
+      return 'Please upload an image file only';
+    }
+  }
+});
+
+export default UserImages;