/// <summary>
/// Set the number of columns for the grid, grid is embedded in a scroll view so rows is unlimeted.
/// Elements will be forced to be square based on button width
/// </summary>
/// <param name="cols"></param>
private void ConfigureGridSize(int cols)
{
_columns = cols;
var gridRect = _gridLayout.RectTransform();
var buttonWidth = gridRect.rect.width / cols;
_gridLayout.cellSize = new Vector2(buttonWidth, buttonWidth);
}