Use @metamask/json-rpc-engine and @metamask/rpc-errors

[FrederikBolding]

WIP

[socket-security]

New dependency changes detected. Learn more about Socket for GitHub ↗︎

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👍 No new dependency issues detected in pull request

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Pull request alert summary

Issue	Status
Install scripts	✅ 0 issues
Native code	✅ 0 issues
Bin script shell injection	✅ 0 issues
Unresolved require	✅ 0 issues
Invalid package.json	✅ 0 issues
HTTP dependency	✅ 0 issues
Git dependency	✅ 0 issues
Potential typo squat	✅ 0 issues
Known Malware	✅ 0 issues
Telemetry	✅ 0 issues
Protestware/Troll package	✅ 0 issues

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📊 Modified Dependency Overview:

➕ Added Package	Capability Access	+/- Transitive Count	Publisher
@metamask/[email protected]	None	+3	metamaskbot
@metamask/[email protected]	None	+0	metamaskbot

[legobeat]

#1728