Bump codemirror from 5.49.2 to 5.50.0 in /website (#7169)
Bumps [codemirror](https://github.com/codemirror/CodeMirror) from 5.49.2 to 5.50.0.
- [Release notes](https://github.com/codemirror/CodeMirror/releases)
- [Changelog](https://github.com/codemirror/CodeMirror/blob/master/CHANGELOG.md)
- [Commits](https://github.com/codemirror/CodeMirror/compare/5.49.2...5.50.0)
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