refactor: rewrite text-diff #3681

Job	Run time
Prepare version string	5s
Build / Build Windows x64	3m 24s
Build / Build macOS (Apple Silicon)	2m 59s
Build / Build Windows ARM64	3m 47s
Build / Build Linux (arm64)	3m 13s
Build / Build Linux	3m 10s
Build / Build macOS (Intel)	3m 34s
Package / Package Linux (linux-arm64)	51s
Package / Package Windows (win-arm64)	29s
Package / Package Windows (win-x64)	32s
Package / Package Linux (linux-x64)	2m 32s
Package / Package macOS (osx-arm64)	22s
Package / Package macOS (osx-x64)	18s
	25m 16s

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