Consistent rpc response case

[yaziciahmet]

Description

Made all RPC responses in camel case, even the possibly unused ones.

Linked Issues

• Fixes Consistent RPC response cases #680

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.3%. Comparing base (97c1d36) to head (f12d068).
Report is 1 commits behind head on nightly.

Additional details and impacted files

Files	Coverage Δ
bin/citrea/src/test_rpc.rs	99.7% <100.0%> (ø)
crates/ethereum-rpc/src/lib.rs	80.5% <ø> (ø)
crates/sequencer-client/src/lib.rs	100.0% <ø> (ø)
...ereign-sdk/full-node/db/sov-db/src/schema/types.rs	73.3% <100.0%> (ø)
...sovereign-sdk/rollup-interface/src/node/rpc/mod.rs	91.3% <ø> (ø)

... and 4 files with indirect coverage changes

[kpp]

LGTM.

@eyusufatik maybe we can fix #716 here?

[eyusufatik]

#838

let's merge this

that can be done in any other pr haha