keyboard navigation for field-grid #2678
Description
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Component
field-grid
Description
Grids have been somewhat tricky for keyboard/screenreader navigation. If they are announced as a list, users tend to only go down the first column and not ever discover there are more columns
To help with this, the navigation should wrap between columns, but not back around to the beginning. So if you press "down" at the bottom of a column, you'll go to the top of the next column. But if you're at the very end of the grid, pressing down will not wrap you back to the beginning of the grid. This gives the best combination of hard stops and column discovery.
Also make sure there's an appropriate role on the field. It currently says the field will open a listbox which is not correct.
Reproduction steps
Stack trace
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