web: added theme-redesign toggles to Storybook and web-app (!19684) · Merge requests · Administrator / sourcegraph

Administrator requested to merge vb/redesign-theme into main Apr 05, 2021

Created by: valerybugakov

Added useRedesignToggle hooks which controls isRedesignEnabled flag and persists it into a local storage.
Added redesign-theme toggle to user-dropdown in the web app. It's shown only in the development environment.

Added redesign-theme toggle to the Storybook toolbar via custom Storybook addon.

Added a helper addRedesignVariants that renders a copy of the selected story wrapped into a redesign class next to the initial story. That way, we can screenshot redesigned components in Chromatic and see differences between affected components in one story. It will be easy to remove this extra content from stories after redesign completion. For more significant changes (e.g., component API changed), we can still create a separate story/variant and wrap it into the redesign class.

👆 PageSelector duplication is for illustration only and is not included in this PR

Closes #19653.

web: added theme-redesign toggles to Storybook and web-app