uilist now draws selected row without color

[db48x]

Summary

Interface "improve contrast in uilist menus by not allowing colored text in highlighted menu items"

Purpose of change

Fixes #75974

Describe the solution

Just remove color tags from the string (caching the results so it only has to be done once per menu item) and then choose between colored or uncolored text as appropriate.

Describe alternatives you've considered

Just not.

Testing

Start at the main menu and load a game. The menu to choose a character uses color in the menu item text, so you can see right away how it works. Most other menus don’t use color like this.

[db48x]

Build errors fixed in #76349

[db48x]

I fixed the merge conflict; now let’s wait and see if the spurious test failure went away as well.