Better UX and appflow

[nots1dd]

A more of a vague issue but here is what the solution should tackle:

1. When we select a particular drive and try to recover something, it should check for whether the chosen FS is BTRFS or XFS, if not then give a neat error (perhaps floating window) saying so, else go to another screen to begin extraction
2. Title of the app (savemynode) should be in every screen of the application
3. Any other UI/UX changes that you feel is necessary, can implement

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