remove extra newline

Co-authored-by: Mojtaba Samimi <33888540+archmoj@users.noreply.github.com>

Author: emilykl

src/plots/layout_attributes.js

@@ -20,7 +20,6 @@ globalFont.family.dflt = '"Open Sans", verdana, arial, sans-serif';
 globalFont.size.dflt = 12;
 globalFont.color.dflt = colorAttrs.defaultLine;
 
-
 module.exports = {
     font: globalFont,
     title: {