Consider having Compare View warn the user about very different versions (i.e. possibly uncomparable)

We wanted to know why local builds were faster than nightly builds https://github.com/mozilla-mobile/fenix/issues/18753. We took a profile from a Nightly build and a local build made from around the same commit and put them in the Compare View only to later discover that we chose the wrong builds and were comparing a July 20th build to an August 20th build. **It would be helpful if the Compare View warned you about comparing profiles that are expected to be too different from one another.** For example, if the profiles are taken on a Firefox version released more than a week apart from each other, it can pop up a dialog to notify you before showing you the diffs. It shouldn't prevent the action because perhaps you intended to look at profiles so different from one another.

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-431)