[ML][Fleet] Link to ML assets from Integration > Assets tab

[jen-huang]

With the work in https://github.com/elastic/kibana/pull/182180, Integration > Assets tab now lists all assets tracked on the package installation saved object after the package is installed (installed_es and installed_kibana) and attempts to link them to other apps in Kibana for viewing.

The following ML assets types are currently unlinked:

• ml-module (Kibana)
• transform (ES)
• ml_model (ES)

As part of this issue, please:

• Decide if and where each asset type should link to
• Update the Fleet code with the links
  • For Kibana asset types, we recommend to add a management.getInAppUrl() function to the saved object registration. No further changes are necessary in Fleet if this is done. Here is an example of this kind of registration.
  • For ES asset types, modify the manual mappings in get_bulk_assets.ts

If an asset type should not even be displayed on this page, please:

• Provide a strong product rationale
• Exclude it from displayedAssetTypes in Fleet

[jen-huang]

cc @elastic/ml-ui to get this on your radar. I wasn't sure of the team label/ping to use.