feat(interactivity): add or remove sample rows in the ui

[arjunattam]

Open to dos

• [x] add new run experience is broken - stuck on loading
• [x] toast is not working for scenario where user is attempting to remove last sample
• [x] sample row is added at the end of the ui (not after the current sample)
• [ ] (zero sample playground) current implementation only works when one sample exists (from dataset config) and a new one is added
• [x] show "run button" when the sample is edited (not just when outputs are empty)
  • done in #127
• [x] test on all examples to cover all scenarios
• [x] add change set

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 4380bc216f2bcf4a227134ec8d27dbbc786286ec

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

This PR includes changesets to release 5 packages

| Name | Type | | -------------------- | ----- | | web | Minor | | @empiricalrun/types | Patch | | @empiricalrun/cli | Patch | | @empiricalrun/core | Patch | | @empiricalrun/scorer | Patch |

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