[Enchancement] Make Keira also as a review tool for SAI

[Grimdhex]

One type of PR that take more time to be review on AC is SAI. Even if SAI are better to manage than scripts cpp, the DB query are not human friendly to read it if we are not an expert.

It should be very nice if we can have a new page to preview exact changes when we paste a query. Here, I talk about SAI but it's could be improve with many other things.

On suggestions would be something as Unreal Engine have with their blueprint system for diff merge.