Remove custom positioning of tooltip arrows

[rak-phillip]

Summary

This removes custom positioning of tooltip arrows that appears to have been causing regressions in tooltip arrow styles dependent upon placement.

Fixes #12197

Occurred changes and/or fixed issues

• Remove css attributes related to positioning for tooltip arrow and arrow container

Technical notes summary

I can assume that this was broken across the board with previous versions of v-tooltip, but these styles appear to be no longer needed now that we have migrated to floating-vue.

Areas or cases that should be tested

These are global styles that affect all tooltips used throughout dashboard.

Areas which could experience regressions

The scope of this changes addresses all tooltips. We will want to confirm that arrows are properly located for tooltips that render

• to the top
• to the bottom
• to the left
• to the right
• a large amount of content
• a small amount of content

Screenshot/Video

Common tooltips rendered on screen

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
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• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes