Make curation from game should have visual feedback

[dot-mike]

Is your feature request related to a problem? Please describe.
When you click on Make curation from game there is no visual feedback that anything is happening. On very large games such as 8800 Blue Lick Rd it takes some time to unzip and copy the data to curation folder. So the user has no visual indication that anything is happening. The user then may happen to press the same button multiple times. Suddenly the view changes from "games" tab to "Curatate" tab and the user may find multiple curations has been made because of frustration.

Describe the solution you'd like
A clear visual representation that something is happening. That includes status such as:

1. preparing curation
2. copying existing data
3. curation ready

The new "status" bar at the bottom can be used for this exact purpose to indicate that something is happening. This status bar should be expanded automatically if it's not already visible.