Rounded Corners To All New Icons

[DThil-Dev]

T9 app icon updated to have larger text and be more minimalist!

[Npepperlinux]

Hello @DThil-Dev !
It looks like there are a few things that need to be fixed in this pull request.

1. The required elements have not been added to appfilter.xml. If this is merged as is, the icons for the eight apps will not be replaced with Arcticons (I was unable to find store links for some of the apps). Please update appfilter.xml by referring to the documentation.
2. The icons do not comply with Arcticons’ style guidelines. Please refer to the documentation and create that the icons have a transparent background,1px strokes, and rounded corners and ends.
3. Suffixes such as -black are not required in SVG filenames. Additionally, the - in filenames must be replaced with _. Furthermore, the filenames must match the contents of the drawable="" in appfilter.xml.

[Donnnno]

Please take a good look at our documentation like Npepper said! As of now, we can't merge the icons because there are too many things that go wrong.