refactor(errors)!: improve RusticError display and usage #1744

Job	Run time
Cross checking x86_64-pc-windows-msvc	1m 22s
Cross checking x86_64-pc-windows-gnu	4m 48s
Cross checking x86_64-apple-darwin	1m 28s
Cross checking aarch64-apple-darwin	26s
Cross checking x86_64-unknown-linux-gnu	3m 49s
Cross checking x86_64-unknown-linux-musl	37s
Cross checking x86_64-pc-windows-msvc	5m 16s
Cross checking x86_64-pc-windows-gnu	1m 42s
Cross checking x86_64-apple-darwin	35s
Cross checking aarch64-apple-darwin	1m 37s
Cross checking x86_64-unknown-linux-gnu	4m 2s
Cross checking x86_64-unknown-linux-musl	39s
Result (Cross-CI)	1s
	26m 22s

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