Runtime Version Scanner: Add the capability to lock content

[toph-allen]

The Runtime Version scanner lets you identify pieces of content that are running old versions of runtimes — that may not have been updated in a while and are possibly

It could be useful to be able to lock content items from the scanner. The simplest way to do this would be a button on the table row, but we could also do something like selecting multiple pieces of content and locking them.