Test normal behavior

• e triggers inline edit
• j/k moves
• ... (as per MGNLUI-4974)

Test selecting downwards with SHIFT + J when root is focused. (used to throw exception)

• focus any row
• move up with ARROW_UP until root is focused
  • this can be checked in status bar, available actions and focus rectangle being absent
• press SHIFT + J so as to trigger selection on current row.
• No exception should be thrown, but focus should appear on the first row without the first row changing it's selection state
  • This basically means that focus rectangle is brought back on the first item as if just "j" was pressed. Next SHIFT+J would select this row and move focus to the next one.

Test shortcuts are not triggered during inline edit

• trigger inline edit on a row
• type all letters of alphabet as in GridWithShortcutsUITest
• enter to save inline edit and not triggering default action
  • test this by having a single item selected when triggering inline edit and have default action configured (to enter, e.g. triggering DetailSubApp)

Test shortcuts are not triggered in filter columns already implemented in MGNLUI-5580 but in old framework, consider reimplementing for new framework.