Update Tabs component design and add tests

[KenanYusuf]

• Updated the tab style according to the new designs
• Added tests for tabs
• Added Story for tabs

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: a4709267a212e7ca0a3b9e10e81b8fdf04d2a81d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 6 packages

| Name | Type | | -------------- | ----- | | @envyjs/webui | Patch | | @envyjs/apollo | Patch | | @envyjs/core | Patch | | @envyjs/nextjs | Patch | | @envyjs/node | Patch | | @envyjs/web | Patch |

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