Add Logic to select the placeholder for each player

[SurajBichkunde39]

This issue tracks the support to handle the player placeholder selector logic.

• The default selection is:
  • Player1 -> X
  • Player2 -> Y
• There should be a clear distinction between selected and not selected placeholders.
• If any player selects any placeholder by clicking on the button, other players' placeholders should be updated in respect to that.