add trace to CLI help output

[LordGhostX]

This PR is a follow-up to #1822 and fully resolves #1767

• Added trace option to the log-level description in the CLI
• Resolve casing issues (websocket -> WebSocket, GRPC -> gRPC, yaml -> YAML, prometheus -> Prometheus)
• Fix typo in CLI description

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.42%. Comparing base (3283b79) to head (87a0f29).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1868      +/-   ##
==========================================
+ Coverage   75.32%   75.42%   +0.09%     
==========================================
  Files          97       97              
  Lines        8333     8333              
==========================================
+ Hits         6277     6285       +8     
+ Misses       1521     1517       -4     
+ Partials      535      531       -4     

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