More Advanced text block style options

1. Nice annotation style underlines for Advanced Test, there's a good example in the header, here: – https://www.optimizepress.com/ – https://www.lemlist.com/ 2. More natural text highlighting adjustments to it's height and style, see "With" and "Without" here: https://slicewp.com/ 3. More divider shapes, also seen here: https://slicewp.com/