(components) fix: ensure Storybook base path is set up properly

[andrewrubin]

Description

Code review ticket: https://wethecollective.teamwork.com/app/tasks/22769488

This updates the vite config's base path property, to ensure that storybook's output knows where it needs to be served from. At the moment the deployed version isn't usable.

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Latest commit: 59c2056

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