docs: add YaelChen as a contributor for code, and test

[allcontributors[bot]]

Adds @YaelChen as a contributor for code, test.

This was requested by NoamGaash in this comment

[github-actions[bot]]

Preview: https://s3.amazonaws.com/noam-gaash.co.il/11651657257/open-bus/120/index.html Preview Storybook: https://s3.amazonaws.com/noam-gaash.co.il/11651657257/open-bus/120/storybook/index.html Test Report (if available): 'https://s3.amazonaws.com/noam-gaash.co.il/11651657257/open-bus/c4c21d3f3d7d709f367f5c9357389af004eda3bb/test-results/index.html'