Attachments (#2716)

* create attachment site

* add deletion

* - fix person create attachment

* - add presentation type
- add some more file endings
- various fixes

front/src/modules/files/graphql/queries/uploadFile.ts

@@ -0,0 +1,7 @@
+import { gql } from '@apollo/client';
+
+export const UPLOAD_FILE = gql`
+  mutation uploadFile($file: Upload!, $fileFolder: FileFolder) {
+    uploadFile(file: $file, fileFolder: $fileFolder)
+  }
+`;