Parameters loading indicator (bar) on `Vehicle Setup` card

[diablo1281]

I am using mostly the 3.5.6 version of QGC and I am used to seeing the progress bar when clicking Refresh on the parameters tab. When I switch to the 4.+ version, it is problematic, because to see progress on downloading parameters (especially on slow links), I need to go back to the main screen. After I am assured all parameters were downloaded, I need to go back to the param tab.

Adding a narrow progress bar, just below the status bar, the same as on the main screen would be awesome and probably not so complicated.