Fields: Tooltips - Stage 1 - Add support of tooltips to OfField

[alexivanenko]

It should be a 'title' attribute becaue it's not possible to use it on devices with touch screen.
It should be a new optional property in OfField. Pl;ease adjust styles for different field types.

This is the design from @AlexLukasevych for the admin area, you can find a tooltip example here - https://www.figma.com/design/InnSYDWOJxw2lygbRBGxQp/Admin%3A-Tooltips?node-id=24-2037

@ivan-b implemented tooltips in the HTML Editor, you can see how it's done.