ux: style for TextBlock with `TextTrimming="CharacterEllipsis"` #3788

Job	Run time
Prepare version string	6s
Build / Build Windows ARM64	3m 42s
Build / Build Windows x64	4m 46s
Build / Build Linux (arm64)	3m 24s
Build / Build macOS (Intel)	4m 12s
Build / Build macOS (Apple Silicon)	4m 53s
Build / Build Linux	3m 13s
Package / Package Windows (win-arm64)	30s
Package / Package macOS (osx-x64)	28s
Package / Package macOS (osx-arm64)	18s
Package / Package Windows (win-x64)	25s
Package / Package Linux (linux-arm64)	49s
Package / Package Linux (linux-x64)	1m 4s
	27m 50s

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