Prevent replacing or removing custom files under retention when using a nuxeo-document-blob

As an administrator, I can NOT add, replace or remove an attachment under retention (nuxeo-document-blob element)

AC
When

• a document is under retention and / or under legal hold
• AND a single or a multi valued property is configured to be retained (e.g., customschema:property)
• AND this property is shown in the document view using the nuxeo-document-blob widget

Then:

• As an administrator in Web UI, I can NOT replace the corresponding file(s) as the action is not available
• As an administrator in Web UI, I can NOT remove the corresponding file(s) as the action is not available
• As an administrator in Web UI, I can NOT add another file as the action is not available

This behavior is applicable to:

• default properties configured to be retainable
• custom properties configured to be retainable using studio

Note:
Checking for these AC requires studio configuration to be produced, it is not available by default