Change commit to async when enter is pressed

[Cosifne]

Changes:

1. Use CommitAsync in enter command handler, inline rename view model and legacy view model. (Three entries)
2. Add an option to control the behavior.
3. Check _renameService.ActiveSession.IsCommitInProgress in all other command handlers to prevent changes when rename is in progress.

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TODO:
All the other callers of the sync version Commit should be revisited and change to call Cancel if needed.
I would like to make it a separate PR.

After the change it would looks like:

[CyrusNajmabadi]

looking great. i think we can cleanup and unify just a little more :)