Fixes trace analytics invalid service map and increase span limit

[joshuali925]

Description

closes #627

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

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[codecov-commenter]

Codecov Report

Merging #629 (39c5006) into main (69b6193) will decrease coverage by 0.00%.
The diff coverage is 50.00%.

@@             Coverage Diff              @@
##               main     #629      +/-   ##
============================================
- Coverage     55.17%   55.16%   -0.01%     
  Complexity      283      283              
============================================
  Files           240      240              
  Lines          7696     7697       +1     
  Branches       1608     1572      -36     
============================================
  Hits           4246     4246              
- Misses         3276     3281       +5     
+ Partials        174      170       -4     

Flag	Coverage Δ
dashboards-observability	46.83% <50.00%> (-0.01%)	⬇️
opensearch-observability	76.60% <ø> (ø)

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Impacted Files	Coverage Δ
...s/trace_analytics/components/traces/trace_view.tsx	40.00% <0.00%> (-0.75%)	⬇️
...trace_analytics/requests/queries/traces_queries.ts	31.42% <100.00%> (ø)
...public/components/visualizations/visualization.tsx	10.00% <0.00%> (ø)
...lic/components/visualizations/charts/text/text.tsx	40.00% <0.00%> (ø)
...ig_editor/config_controls/config_panel_options.tsx	16.66% <0.00%> (ø)

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