Platform Positioning Copy

Created by: zlonko

This closes #5414 (closed). It makes minor copy updates to the Use Case, Pricing, and Case Studies pages.

Changelog

• Copy updates from the stakeholder doc
• Made minor adjustments to text styling as requested
• Removed an unused style
• Prettier caught changes in other files

Test

1. Ensure prettier has standardized the proposed changes.
2. Ensure the copy updates are accurate