Homepage: Fix pricing table checkbox layout

![Pricing table checkbox layout](https://github.com/user-attachments/assets/97136e2d-2797-40ad-b215-814741e803d3)

## Tasks

- [ ] Increase the line height of “For collaborations...”
- [ ] Top-align the checkbox for Mux

## Context

Split from #9633.
