Morecast V2: Workaround datagrid spacebar bug

**Actual Behaviour**

There are a couple of strange behaviours with the datagrid that we might want to try and workaround.

1. Launch Morecast 2: https://psu.nrs.gov.bc.ca/morecast-2
2. Scroll down the grid and find an N/A value.
3. Position the row with the N/A value as the last visible row
4. Single click on the N/A cell
5. Press the spacebar. You will see the datagrid scroll which it shouldn't
6. Press Enter to end the edit session. You will see a value of 0 in the cell, it should remain as N/A if nothing was typed in.


We could try intercepting the space bar keystroke event and swallow it.

Reproduce the issue in Morecast 2 at https://psu.nrs.gov.bc.ca/morecast-2 using the listed datagrid steps, then locate the datagrid implementation and its keyboard handling. Confirm the spacebar no longer scrolls the grid and that pressing Enter without typing leaves an N/A cell unchanged.

Written by the indexing model from the issue text.