Add CDC WONDER cancer data to frontend

[eriwarr]

Description and Motivation

Added integration for cancer incidence data from CDC WONDER dataset. This adds state and national level cancer incidence data for:

• Breast cancer (women ages 50-74)
• Cervical cancer (women ages 20-64)
• Colorectal cancer (ages 45-74)
• Lung cancer (ages 50-79)
• Prostate cancer (men ages 55-69)

The data will be displayed alongside existing cancer screening data

Has this been tested? How?

• Confirmed demographic restrictions work as expected
• Verified data loading and display at state and national levels
• Tested demographic breakdowns

Types of changes

• New content or feature

New frontend preview link is below in the Netlify comment 😎

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[benhammondmusic]

awesome work! thanks for making sure it's behind a flag. a few tweaks before we merge, and then we can fine-tune in future PRs before any launch hopefully in Q2 2025