lyannel

fix(err): fix data serialization err

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### This PR: - Fix to data serialization error to run application locally Before: After:

fix(a11y): fixed color contrast and heading issues

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## Changes - Fixed color contrast and heading a11y issues on Learn Page - Fixed 90% of a11y issues on Learn Page ## Screenshots ### Before Changes ### After Changes

Accessibility Issues

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After running the automated axe dev tool scan on the documentation first page, there are 35 accessibility issues. Some of these issues are simple and can be fixed by updating...