Bug 1813987: Make view versioning work with gridstack

- Only allow to create a new version if the view
is using new gridstack layout.

In timeline version section:
- For view versions that were created with old layout,
show them as they are
(we dont translate old view versions to new layout)
- For view versions that are created with new grid layout,
they are also displayed in the timeline view with the new grid
layout

behatnotneeded

Change-Id: I1abdae9e5e547dcc9bce97cac127085786dcac8a