add corporate sponsorship page and change name

[kjaymiller]

Issue Link 🔗:

Type of Change

• Bug fix 🐞
• New feature/page
• Documentation update
• Other

Description 📋

1. Adds corporate sponsorships page
2. Adds links to corporate sponsorships in footer and in the sponsorships Description
3. Changes the headers link from "support" to "donate". No change to url.

Checklist ✅

• Followed the Code of Conduct and Contribution Guide
• Ran pre-commit run --all
• All tests pass locally
• Added tests (if applicable)
• Documentation updated (if applicable)