fix labels rendering: take border width into account as well
fix labels rendering: take border width into account as well

michaelaye/vispy,dchilds7/Deysha-Star-Formation,inclement/vispy,Eric89GXL/vispy,kkuunnddaannkk/vispy,kkuunnddaannkk/vispy,ghisvail/vispy,bollu/vispy,michaelaye/vispy,michaelaye/vispy,RebeccaWPerry/vispy,bollu/vispy,drufat/vispy,jdreaver/vispy,srinathv/vispy,srinathv/vispy,bollu/vispy,Eric89GXL/vispy,inclement/vispy,ghisvail/vispy,jdreaver/vispy,QuLogic/vispy,inclement/vispy,dchilds7/Deysha-Star-Formation,kkuunnddaannkk/vispy,julienr/vispy,jdreaver/vispy,julienr/vispy,ghisvail/vispy,RebeccaWPerry/vispy,drufat/vispy,julienr/vispy,srinathv/vispy,QuLogic/vispy,drufat/vispy,Eric89GXL/vispy,RebeccaWPerry/vispy,QuLogic/vispy,dchilds7/Deysha-Star-Formation