Enable Tailwind integration to work with the Primary tab in the inspector

Currently Tailwind works well in the inspector when using the Design tab and then as soon as you switch to the Primary tab, all style properties default to using block classes.

When developing, we can work with this consideration, but in some cases it is preferable to only show the Primary tab to clients, in which case there can be a mixed usage occurring which is undesirable for several well known reasons.

@Louis mentioned in a previous youtube live that Nav block and other more complex nested blocks will be receiving more integrated support for Tailwind, so we are hoping that Primary tab support will be a precursor to this.

It will be a much more streamlined experience using Cwicly with Tailwind when this is in place.

Thank you Cwicly team!