Merge pull request #11106 from opf/chore/amend-api-docs-for-custom-dir-mimetype

[chore] amend api docs with correct folder mimetype

docs/api/apiv3/components/schemas/file_link_origin_data_model.yml

@@ -17,7 +17,7 @@ properties:
     description: |-
       MIME type of the linked file.
 
-      To link a folder entity, the custom MIME type `inode/directory` MUST be provided. Otherwise it defaults back to
+      To link a folder entity, the custom MIME type `application/x-op-directory` MUST be provided. Otherwise it defaults back to
       an unknown MIME type.
   size:
     type: integer

docs/api/apiv3/paths/work_package_file_links.yml

@@ -15,7 +15,7 @@ post:
 
     The file's id and name are considered mandatory information. The rest of the origin meta data SHOULD be provided
     by the client. The _mimeType_ SHOULD be a standard mime type. An empty mime type will be handled as unknown. To link
-    a folder, the custom mime type `inode/directory` MUST be used.
+    a folder, the custom mime type `application/x-op-directory` MUST be used.
 
     Up to 20 file links can be submitted at once.