Issue #3347994: Add/enable Tugboat live previews for merge requests

changed the description

changed target branch from 2.x to 3.x

added 11 commits

• b564d21d...23867166 - 10 commits from branch project:3.x
• 78f9f06d - Merge branch '3.x' into 3347994-addenable-tugboat-live

Compare with previous version

merged