Loading splash screen disappears when clicked on #4915

Summary: Clicking on splash screen causes it to disappear, leaving user with no status of the rescan.

When bitcoin-qt is loading, the splash screen which displays the loading status disappears when clicked on, and then the status is hidden from the user. This will happen if a user goes to another application and then tries to click back to see the status. An example of this is when changing wallet.dat files, a rescan needs to be done which takes about 5-10 minutes. A % complete indicator is shown on the loading screen. After it is gone, the application shows no visual indicator to the user on what it is doing. The user just waits and hopes it loads eventually. Most users probably dont even know that clicking on it was what made it disappear, and assume it went to the background somewhere, but never find it. This is on Ubuntu.

It's intended that the screen dissappears, when clicking on it. I think this is a duplicate, we perhaps want to make it reappear, when clicking the tray icon, but no one implemented that yet.

@diapolo Wasn't there a patch for this at some point, possibly even merged?

The rescan % complete status would be better in a movable window so that it can be placed in the corner where it can be seen while the user is doing other tasks. Currently it is stuck loading in the center of the screen and getting pushed behind other windows. Example of such a window already being used: when killing the process, a small window appears that says 'Bitcoin Core is shutting down...' 'Do not shut down the computer until this message disappears.'

Indeed, why don't we make the splash screen movable as well as minimizable like a normal window.

Solved by #4941