Make onSelect works also for object keys

[andres-artunduaga]

Thanks for reviewing this.

Sending code to cover #82

1. Key Click Selection Behavior

• Added key-click selection support so clicking object or array keys triggers onSelect, not only value clicks.
• Applied this behavior consistently across ArrayGroup, JsonObject, ObjectName, and VariableEditor.
• Added unit tests to cover key-click selection paths.

2. Lint and Test Cleanup

• Applied style and lint compliance fixes required by pre-commit checks.
• Cleaned naming, equality checks, handler references, and unused code paths.
• Updated related tests to keep formatting and fixtures consistent with lint rules.

3. Unit Test Assertion Follow-up

• Fixed one JsonObject unit test assertion for expanded icon count after test fixture normalization.
• Confirmed unit tests pass after this adjustment.

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Project	Deployment	Actions	Updated (UTC)
react-json-view	Ready	Preview, Comment	Feb 28, 2026 9:05pm

[Kikobeats]

@andres-artunduaga thanks, can you add it as part of the demo? 🙏

[Kikobeats]

@cursor review