Normalizes the OHLC days parameter

[smk762]

closes #287

Snaps the days param for coingecko api ohlc queries to accepted values.

To test:

• launch app in web with dev console open.
• filter network logs to capture coingecko requests
• navigate around graphs and ensure no errors as seen in linked issue are present.

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/snap-ohlc

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[github-actions]

Visit the preview URL for this PR (updated for commit 2f1f1b3):

https://komodo-playground--pr288-fix-snap-ohlc-s1jrvtjf.web.app

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[github-actions]

Visit the preview URL for this PR (updated for commit 2f1f1b3):

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[cipig]