- Switched dynamic styles to :focus-visible to let the browser decide when to display
- Changed most existing :focus CSS selectors to also use :focus-visible
-Made style variables for focus outlines (main and a faint one)
- Remove focus outline from chat bar buttons
- Fix focus of chat bar highlight, moved to outer border
- Fix buttons in chat backgrounds with keyboard navigation
- Add CSS styling rule to still highlight a button on hover when it is being focused already (Otherwise you won't get any effect on hovering and clicking on the default button if a popup has just opened)
- Dynamic styles extended to ignore rules where both hover and focus is used
