Make Snap "classic confinement" error message more accurate and scarier
requested to merge ngraham/discover:make-snap-classic-confinement-message-more-accurate-and-scarier into master
The message shown to users when an app has to use "classic confinement" is quite jargonistic and does not really communicate the point. This commit fixes that by using more user-comprehensible, which actually has the effect of making it a bit scarier.