~ convert subtitlesettings to class

~ use base import name instead of relative file path
~ fix "new" calling

Signed-off-by: Christoph Potas <christoph286@googlemail.com>

src/components/subtitlesettings/subtitleappearancehelper.js

@@ -1,3 +1,7 @@
+/**
+ * Subtitle settings visual helper
+ * @module components/subtitleSettings/subtitleAppearanceHelper
+ */
 function getTextStyles(settings, isCue) {
 
     let list = [];