[Icon with text] Change the Heading "text" setting to "inline_richtext" setting

[melissaperreault]

Describe the enhancement you'd like
Change the Heading text setting for inline_richtext to let merchants include links, bold and italic styling on this text block. This will allow merchants to link to other areas of their online stores and align with the block intention.

Describe alternatives you've considered
We could have used the richtext section as well but since the text setting doesn't support line breaks and that line breaks are not optimize for this use case, inline_richtext is a better improvement.

Additional context/screenshots
Maybe a screenshot or design?

• Before
• After