Table virtualization

[msmithNI]

Pull Request

🤨 Rationale

Related Issue:

• Add virtualization #865

👩‍💻 Implementation

Uses TanStack Virtualizer as mentioned in the spec, and as done in the prototype branch.
Major differences from the prototype:

• Prototype and TanStack Virtual examples set the virtualizer's "total size" (height of all rows) on the row container, and added translate transforms on each individual row. We noticed some flashing during scrolling with that approach in Firefox. Instead, this version sets the height of all rows on a sibling div, and applies a single translate transform on the row container. This is more similar to what Perspective/regular-table do, and it got rid of the flashing in Firefox.
• Prototype used a ResizeObserver in the Nimble table code. TanStack Virtualizer is already using a ResizeObserver internally (due to us using its provided observeElementOffset and observeElementRect functions as inputs in our VirtualizerOptions object), so I concluded we didn't need a separate resize observer.

🧪 Testing

• Added a couple of autotests dealing with virtualization (that the # of rows rendered is less than the total; that we can scroll the element to view the end rows; that the # of rendered rows increases when the element height increases)
• Updated table Storybook to add a 2nd option for table data, a data set of 10,000 rows

✅ Checklist

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

[jattasNI]

First round of feedback is mostly based on testing the demo page in a browser; I haven't looked at the implementation yet but wanted to get my initial feedback sent.

[jattasNI]

Performance feels great in Firefox and Safari on macOS 🚀

[mollykreis]

Because there are conflicts with main, I'm going to wait to re-review until you've updated & resolved.