feat: let filenames in errors be relative to the current dir if possible #10380

Job	Run time
build-nargo	2m 34s
build-acvm-js	1m 34s
build-noirc-abi	1m 26s
build-noir-wasm	3m 56s
noirc_abi	1m 12s
ACVM JS (Browser)	1m 14s
ACVM JS (Node.js)	52s
noir_codegen	1m 9s
Noir JS	1m 20s
Example scripts	18s
Check external repo - zac-williamson/noir-edwards	4s
noir_wasm	2m 7s
Integration Tests (Browser)	1m 58s
Integration Tests (Node)	2m 8s
End	1s
	21m 53s

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