Design changes to make the UI look better for color-blind people

[ameshkov]

1. Review the UI elements and look for elements which don't look good to color-blind (red/green indication for instance). Do it for both themes. @AlikhanAliev
2. @admitrevskiy is responsible for implementation.

[TPS]

Just as a reminder, Accessibility Scanner is an official (Google's, anyway 😁) tool that may be useful.

[Gitoffthelawn]

Remember, there is red-green color blindness, as well as blue-yellow color blindness. Furthermore, there is complete color blindness (monochromacy).

[admitrevskiy]

Done.

Testing instructions for QA:
-Examine new Colorblind mode (you can enable it in General Settings). You will see changes in the Filtering Log. Check it for both light and dark themes.
-Examine new icons in the Apps Management