feat: better LSP hover for functions #14595

Job	Run time
build-nargo	2m 24s
build-noirc-abi	2m 23s
build-noir-wasm	4m 36s
build-acvm-js	1m 54s
ACVM JS (Node.js)	45s
ACVM JS (Browser)	1m 58s
noirc_abi	1m 21s
Example scripts	12s
Noir JS	1m 12s
noir_codegen	1m 15s
Check external repo - ${{ matrix.project.repo }}	0s
noir_wasm	1m 50s
Integration Tests (Browser)	2m 18s
Integration Tests (Node)	2m 18s
End	1s
	24m 27s

Provide feedback