Table dnd enhancement

[Happyrajsinh]

Closes #3838

Summary

Enahnces table drag and drop feature to drop table rows outside the table over breadcrumb nodes.

Change List (commits, features, bugs, etc)

Majority of the work is done in the useTableDnd.jsx. Prop hasBreadcrumbDrop is used to enable this feature in addition to hasDragAndDrop of table. When drag is started upon setting up of drag and drop through useEffect hook, mouse events like mouseEnter and mouseLeave are attached to all the breadcrumb nodes in the dom. Upon drop or drag cancel all these event listeners are removed.

Acceptance Test (how to verify the PR)

• Storybook: Table > with drag and drop rows. hasBradcrumbDrop checked in knobs. Will allow drop over breadcrumb nodes. For nodes inside the ellipsis, user need to first open that by clicking then need to perfrom drag and drop over those nodes.
• New test that are part of StatefulTable.test.jsx.

Regression Test (how to make sure this PR doesn't break old functionality)

• Existing table tests.

Things to look for during review

• Make sure all references to iot or bx class prefix is using the prefix variable
• (React) All major areas have a data-testid attribute. New test ids should have test written to ensure they are not changed or removed.
• UI should be checked in RTL mode to ensure the proper handling of layout and text.
• All strings should be translatable.
• The code should pass a11y scans (The storybook a11y knob should show no violations). New components should have a11y test written.
• Unit test should be written and should have a coverage of 90% or higher in all areas.
• All components should be passing visual regression test. For new styles or components either a visual regression test should be written for all permutations or the base image updated.
• Changes or new components should either write new or update existing documentation.
• PR should link and close out an existing issue

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[abpaul1993]

LGTM