fix(tooltip): fix tooltip formatting for rotated charts

[markov00]

Summary

When using rotated charts, the used X and Y axis for formatting should be inverted.

fix #273

Checklist

Use strikethroughs to remove checklist items you don't feel are applicable to this PR.

• [ ] Any consumer-facing exports were added to src/index.ts (and stories only import from ../src except for test data & storybook)
• [ ] This was checked for cross-browser compatibility, including a check against IE11
• [ ] Proper documentation or storybook story was added for features that require explanation or tutorials
• Unit tests were updated or added to match the most common scenarios
• Each commit follows the convention

[codecov-io]

Codecov Report

Merging #285 into master will increase coverage by 0.11%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #285      +/-   ##
==========================================
+ Coverage   98.05%   98.16%   +0.11%     
==========================================
  Files          37       37              
  Lines        2671     2673       +2     
  Branches      613      615       +2     
==========================================
+ Hits         2619     2624       +5     
+ Misses         47       44       -3     
  Partials        5        5

Impacted Files	Coverage Δ
src/chart_types/xy_chart/store/chart_state.ts	97.46% <100%> (+0.01%)	⬆️
.../chart_types/xy_chart/crosshair/crosshair_utils.ts	95.83% <0%> (+4.16%)	⬆️

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[nickofthyme]

Tested locally, looks good to me! 👍

[markov00]

🎉 This PR is included in version 8.1.8 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

Your semantic-release bot 📦🚀