Multi-file editor fetch log data from a different endpoint

What does this MR do?

Fetches tree log data in a different request to allow the tree data request to be as fast possible. This endpoint then gets recursively called until their is no more log data to fetch.

Whilst this data is loading it shows the skeleton loading rather than showing nothing.

Screenshots (if relevant)

What are the relevant issue numbers?

Closes #38360 (closed)