turf.square needs mercator coordinates to work correctly

I've been struggling with getting a correct turf.square using real world coordinates until I realized I needed to pass mercator coordinates to make it work correctly on earth.

Maybe we could just add a hint in the docs or add a function that detects wgs84 coordinates and makes the correct calculation / conversion.

This is the result doing it with Wgs84 lat long:

And the expected result with conversion to mercator and back:

Quick code for the second result:

	var originalbboxx = [-2.440916, 49.4627643, -2.4579404, 49.4828877]
	
	var point1 = [originalbboxx[0], originalbboxx[1]]
	var point2 = [originalbboxx[2], originalbboxx[3]]

	var converted1 = turf.toMercator(point1);
	var converted2 = turf.toMercator(point2);

	var squared = turf.square([converted1[0],converted1[1],converted2[0],converted2[1]] )

	var squarept1 = [squared[0], squared[1]]
	var squarept2 = [squared[2], squared[3]]

	var wsg1 = turf.toWgs84(squarept1);
	var wsg2 = turf.toWgs84(squarept2);

	var newSquaredBbox = [wsg1[0],wsg1[1],wsg2[0],wsg2[1] ]

Start by reading the turf.square entry point and its documentation, then inspect the toMercator and toWgs84 usage shown in the report. Compare the WGS84 and Mercator examples and establish whether the intended resolution is documentation guidance or changed coordinate handling; done means the selected behavior is documented or works consistently with a regression test.