frontend support for downloading originals

src-ui/src/app/data/paperless-document-metadata.ts

@@ -0,0 +1,11 @@
+export interface PaperlessDocumentMetadata {
+    
+  paperless__checksum?: string
+
+  paperless__mime_type?: string
+
+  paperless__filename?: string
+
+  paperless__has_archive_version?: boolean
+
+}