Some AppCenter icons run off screen

[kwg]

It's merely a cosmetic problem, but some of the icons on this page are off screen (which requires the user to scroll horizontally to see all of the icons):

AppCenter > Office > Notes



This problem is easily fixed with a new <tr> element in the code.

I proposed another fix here, which should (after a little work) make maintenance of the AppCenter pages a bit easier in the long run:

https://github.com/sparkylinux/sparky-aptus-appcenter/issues/17