Nav - add wrapper to Nav link item text by default

[tlabaj]

Describe the enhancement or change
A clear and concise description of the request. What is the expected outcome?

Update NavItem to add the Nav link text wrapper (.pf-v5-c-nav__link-text) by default instead of as an opt-in. Remove the hasNavLinkWrapper opt-in prop.

[thatblindgeye]

In addition to the above, as part of the work from patternfly/patternfly#6704 (review) we will need to add a prop for an icon that must be rendered before the link text.

[mcoker]

This should be ready to work on now, work was done in patternfly/patternfly#6704. And as @thatblindgeye mentioned in #9755 (comment), there is a separate enhancement (that depends on the nav text wrapper) to add icon support to nav items. Not sure if we want a separate issue for that, or just include it as part of this update @tlabaj?