[ENHANCEMENT] Star Battle: Combine Rows within Regions and Columns Within regions and update icon

[Bram28]

Describe the current behavior of what you're trying to improve. If your enhancement request related to a problem, please also describe the problem.

See below

Describe the improvement you'd like

No sense to split Rows within Regions and Columns Within Regions: combine into one rule (and maybe there is a better name for it?)

Also: icones do not reflect what happens on board: either use black squares on board, or use black dots in rule icons:

Describe alternatives you've considered

No response

Additional Context

No response