Menu button column

[mollykreis]

Pull Request

🤨 Rationale

Create menu-button table column.

👩‍💻 Implementation

Create nimble-table-column-menu-button that creates a menu button in a column and allows slotting a menu into the table to be used with the menu buttons that are created in the column.

This is the first column that hasn't allowed grouping, so I also made a few changes to facilitate not needing to specify a group header view on a column.

🧪 Testing

• Manually tested
• Created unit tests for the column
• Created storybook page for the column
• Created matrix tests for the column, including tests with the menu being open

✅ Checklist

• [ ] I have updated the project documentation to reflect my changes or determined no changes are needed.

[mollykreis]

@atmgrifter00, will you buddy this PR for me?