feat: add ability to turn off (or remove entirely) focusing of data grid cells in DataGrid

[Stephen-Lamb]

🙋 Feature Request

I would like the ability to be able to turn off cells in a data grid being focusable. We have some data grids in our app that contain focusable elements such as buttons and text fields, and because of the data grid cells also being focusable, it is taking double the amount of tab key presses to move between the focusable elements in the grid.

To be honest I don't see data grid cells being focusable as particularly useful, as when for example the data grid cell contains text you can't seem to do anything useful with it such as press CTRL-C to copy the text. But maybe it's an a11y thing. However, being able to focus the column headers is useful, as then you can change for example the sort order using the keyboard.

🤔 Expected Behavior

😯 Current Behavior

💁 Possible Solution

🔦 Context

We have some data grids in our app that have columns that contain text but also has a column that is a text field. Product management is complaining that it takes two tab key presses to move between the text fields (caused by the data grid cells also being focusable). If we could turn off data grid cells being focusable then we could move between text fields in the grid with one tab key press.

💻 Examples

[MarvinKlein1508]

@Stephen-Lamb I can see your use-case. I actually like the cells being focusable. It allows me to scroll (in larger datagrids) horizontal much easier with keyboard. I'm tagging this one here as feature request but right now we are fully focused on the upcoming v5 version :)