The Vector skin wraps all user generated content in an element with id #mw-content-text
Let's also do this in Minerva so the two skins are more in line with each other.
This is a potential breaking change for those JavaScript modules who are not using the Page or Skin JavaScript classes so consider those and backwards compatibility when merging.
As we move forward and start to work on features that work on both desktop and mobile and do more in JS we want to minimise these inconsistencies.
When doing this, we should be sure to ensure that we do not break T113651