feat: Added new Brand Colors + Updated Funnel Page default Colors

[brandenTenbrink]

Closes #

Changes

Added the three new brand colors and updated the funnel page to use these colors by default.

PurpleX, CetaceanBlue, DogwoodRose

Screenshots

Checklist

Check all that apply

• [ ] Updated documentation to reflect changes
• [ ] Added entry to top of Changelog with link to PR (not issue)
• [x] Tests pass
• [x] Peer reviewed and approved