Table Updates: Styles

[margaree]

Due to the potential downstream impact of table style changes, I wanted to get hopefully all of them in one PR, so it is a bit large.

This PR covers the following stories:

• Tables > Update table-col-sort-button styles
• Tables > Handle table-col-sort-button styles when multiple items in a cell
• Table > Handle cell height when checkbox, icon button, or text input is in cell
• Table > Update cell padding of normal cell

In summary, we want to do the following:

• Update the look and feel of the d2l-table-col-sort-button to take up the whole cell if it can (nothing else in the cell) and have fallback styles if not (10px padding on each side in the shared cell case)
• All cells should have 0.7rem of padding

[github-actions[bot]]

Thanks for the PR! 🎉

We've deployed an automatic preview for this PR - you can see your changes here:

URL	https://live.d2l.dev/prs/BrightspaceUI/core/pr-4671/

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[d2l-github-release-tokens[bot]]

:tada: This PR is included in version 3.1.0 :tada:

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