fix(rpc): Refactor `getrawtransaction` & RPC error handling #2219

Job	Run time
Generate crates matrix	11s
Check crates matrix	2s
Build zebrad crate	36m 29s
Build zebra-utils crate	16m 22s
Build zebra-test crate	1m 24s
Build zebra-state crate	22m 40s
Build zebra-script crate	3m 22s
Build zebra-scan crate	25m 45s
Build zebra-rpc crate	34m 6s
Build zebra-node-services crate	3m 27s
Build zebra-network crate	7m 42s
Build zebra-grpc crate	15m 19s
Build zebra-consensus crate	17m 21s
Build zebra-chain crate	5m 6s
Build tower-fallback crate	1m 31s
Build tower-batch-control crate	1m 21s
Open or update issues for building crates individually failures	0s
	3h 12m 8s

Provide feedback