fix(app): replace remark with react-markdown #14942
Merged
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Closes RQA-2587 and RQA-2566
Overview
After the vite migration, the app would crash any time the release notes markdown file needed parsing, because remark decides to invoke process.cwd() for some reason. Webpack can mock "process" out, but there's no 1:1 analogous solution with Vite.
Although there's probably some hacky way do accomplish the same thing, remark-react has been deprecated for over three years, so that's more incentive to migrate.
After testing a few options, react-markdown is relatively lightweight and properly overrides the markdown as desired (ie, no additional changes need to be made to the markdown for the refactor). It also doesn't have the same Vfile lib dependency that is the source of the "process" issue, so no more crashing when parsing release notes. It's also well-maintained, etc.
Test Plan
Changelog
Review requests
Risk assessment
low