feat: let filenames in errors be relative to the current dir if possible #10376

Job	Run time
build-nargo	2m 46s
build-noirc-abi	1m 30s
build-acvm-js	1m 32s
build-noir-wasm	3m 57s
noirc_abi	1m 31s
ACVM JS (Node.js)	48s
ACVM JS (Browser)	1m 11s
Noir JS	1m 24s
Example scripts	11s
noir_codegen	59s
Check external repo - zac-williamson/noir-edwards	18s
Integration Tests (Browser)	2m 10s
noir_wasm	2m 3s
Integration Tests (Node)	2m 15s
End	1s
	22m 36s

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