Launch Bitcoin-Qt before importing Descriptors

[BenWestgate]

Is your feature request related to a problem? Please describe. No visual progress is displayed during import descriptors although rescanning the blockchain for transactions is a potentially slow operation.

Describe the solution you'd like Stop bitcoind and start bitcoin-qt before importing descriptors in bails-wallet

Describe alternatives you've considered Running bitcoin-qt the entire time bails-wallet is running. This provides an opportunity for distraction and consumes more resources making the GUI potentially laggy.