Project Content Updates

[curt-mitch-census]

Pull Request

Description

This PR makes copy updates to the projects featured on the xD websites, including removing some projects that were several years old.

Related Issue

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Changes Made

Copy updates on various project-related text and pages. Removal of old project summaries.

Screenshots (if applicable)

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Checklist

• I have read the CONTRIBUTING.md document.
• My code follows the project's coding standards.
• I've included leading slashes in the image reference to prevent Open Graph image issues
• I have added tests that prove my fix is effective or that my feature works.
• All new and existing tests passed.
• I have updated the documentation accordingly.
• The title of my pull request is a short description of the changes.
• My pull request is assigned to the appropriate milestone.

Additional Notes

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