Update bar graph tooltip

[shinyichen]

Update the Bar graph tooltip to show all groups

[thostetler]

LTGM!

[codecov]

Codecov Report

❌ Patch coverage is 19.23077% with 42 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.0%. Comparing base (fe8e34d) to head (5f22482).

Files with missing lines	Patch %	Lines
src/components/Visualizations/Graphs/BarGraph.tsx	20.6%	31 Missing ⚠️
...mponents/Visualizations/GraphPanes/MetricsPane.tsx	9.1%	10 Missing ⚠️
...nents/Visualizations/GraphPanes/YearsGraphPane.tsx	50.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #810     +/-   ##
========================================
- Coverage    62.0%   62.0%   -0.0%     
========================================
  Files         317     317             
  Lines       36490   36536     +46     
  Branches     1642    1642             
========================================
+ Hits        22614   22618      +4     
- Misses      13839   13881     +42     
  Partials       37      37             

Files with missing lines	Coverage Δ
...nents/Visualizations/GraphPanes/YearsGraphPane.tsx	11.5% <50.0%> (-<0.1%)	⬇️
...mponents/Visualizations/GraphPanes/MetricsPane.tsx	15.6% <9.1%> (-<0.1%)	⬇️
src/components/Visualizations/Graphs/BarGraph.tsx	18.7% <20.6%> (-0.9%)	⬇️

... and 2 files with indirect coverage changes

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