feat(lsp): add goto definition for structs #844

Job	Run time
build-nargo	2m 12s
build-noir-wasm	6m 14s
build-acvm-js	3m 16s
build-noirc-abi	3m 30s
source-resolver	53s
ACVM JS (Browser)	1m 10s
ACVM JS (Node.js)	42s
noirc_abi	53s
noir-js-backend-barretenberg	41s
noir_codegen	54s
Noir JS	1m 30s
Integration Tests	8m 59s
noir_wasm	2m 42s
End	1s
	33m 37s

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