Use correct variable to create new font

Otherwise, it does new Font("editor.font.family", …), which we don't want

Author: dzaima

app/src/processing/app/Preferences.java

@@ -369,7 +369,7 @@ static public Font getFont(String familyAttr, String sizeAttr, int style) {
  Toolkit.getMonoFontName().equals(fontFamily)) {
  return Toolkit.getMonoFont(fontSize, style);
  }
- return new Font(familyAttr, style, fontSize);
+ return new Font(fontFamily, style, fontSize);
  }