Adjust purchase flow ux for ramon

What does this MR do and why?

Related to #444480

Removes QSR overage alert and adds subheading when Ramon plan is active (maximum seats will only be provided in Ramon plans)

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Before	After

How to set up and validate locally

• Manually set maximumSeatLimit to a value here
  • ex: return 20;
• See that the QSR overage alert is not shown and that the subheading is shown