Enforces a variety of CAxxxx rules that do not have existing violations.
For the benefit of dotnet_code_quality.CA2241.try_determine_additional_string_formatting_methods_automatically = true, rename parameters of methods that forward to string.Format so format issues will get detected automatically.
- Extract chat line templates and logic so they can be reused across widgets
- Make text notification styling entirely template driven (by removing chat color configuration and making color optional for `TextNotification`)
- Add a new TextNotificationsDisplay widget (based on and replacing ChatDisplayWidget)
- Add timestamp support to text notifications
