Add ability to diff Snapshots in Insomnia Teams

[djjazzyjew]

There are two situations where the ability to see what has changed between snapshots would come in handy when collaborating with Insomnia Teams.

1. When viewing the history of snapshots for a collection

• Currently the only things visible in the History window are "Message", "When", "Author", and "Objects"
• It would be a great feature to be able to see what had changed between each of the pushed snapshots so a team member can make a better decision whether or not to Restore a snapshot. This would also be handy when troubleshooting issue that could have been introduced by a bad snapshot.

2. When making local changes to a collection and seeing what exactly has changed before creating a new snapshot

• When creating a snapshot from local changes, you can only see the objects that were changed and not the actual changes that will be applied. This can lead to team members committing unintended changes with their created snapshot.
• A desirable solution would be to have a UX similar to popular tools like GitHub: