[FEATURE] Require a Selection

[roanbear]

Right now the LWC is aware of the number of records selected and can present them to a variable that the flow can read.

The flow needs to validate that records have been selected.

Ideally there could be a setting requiring at least a single field selection so that the flow doesn't have to handle the validation.

• Have a setting requiring a minimum selection (defaults to 1)
• Setting a maximum number of records (defaults to 0)