Org Plans: split Team and Enterprise (#1798)
* Update docs to reflect Team & Enterprise plans
Replaced references to 'Enterprise Hub' with 'Team & Enterprise' plans across multiple documentation files for consistency with current plan offerings. Also updated the Enterprise Plus network security link and clarified storage limits language.
* Update billing.md
* Apply suggestions from @jeffboudier
Co-authored-by: Jeff Boudier <74218629+jeffboudier@users.noreply.github.com>
* Update docs/hub/billing.md
Co-authored-by: Michelle Habonneau <83347449+Michellehbn@users.noreply.github.com>
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Co-authored-by: Jeff Boudier <74218629+jeffboudier@users.noreply.github.com>
Co-authored-by: Michelle Habonneau <83347449+Michellehbn@users.noreply.github.com>
