Improve error message when grid's primary key is not set & batch editing is enabled

[3phase]

Is your feature request related to a problem? Please describe.

When there's row editing & batch editing enabled and the grid's primary key is not set, the grid throws an error, which is hard to relate to the scenario when the grid doesn't have a primary key set.

Describe the solution you'd like

Add a console message, suggesting to identify a primary key when it's not set.