Allow viewing span details in a side panel instead of inline view

[yurishkuro]

Description of the changes

• Enables displaying span details in a side panel as an option
• Default view is still inline span details, can be changed via traceTimeline.defaultDetailPanelMode="sidepanel" config option.

Previous phases: Phase 1 #3558, Phase 2 #3562, Phase 3 #3569, Phase 4 #3576, Phase 5 #3577.

[Copilot]

Pull request overview

Updates Jaeger UI’s default configuration to enable the trace timeline “side panel span details” feature flag by default, while keeping inline as the initial detail view mode.

Changes:

• Flip traceTimeline.enableSidePanel default from false to true
• Keep traceTimeline.defaultDetailPanelMode default as 'inline'

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.15%. Comparing base (6e6724a) to head (34d291a).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3578   +/-   ##
=======================================
  Coverage   89.15%   89.15%           
=======================================
  Files         303      303           
  Lines        9698     9698           
  Branches     2584     2585    +1     
=======================================
  Hits         8646     8646           
+ Misses       1049     1048    -1     
- Partials        3        4    +1     

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