feat(editor-3000): add visualization tab

[EDsCODE]

Problem

• Epic: Editor & Modeling 3000 #26193 visualization tab

Changes

• bring back visualization ability on new editor tab

👉 Stay up-to-date with PostHog coding conventions for a smoother review.

Does this work well for both Cloud and self-hosted?

How did you test this code?

[github-actions]

Size Change: 0 B

Total Size: 1.11 MB

ℹ️ View Unchanged

Filename	Size
frontend/dist/toolbar.js	1.11 MB

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[posthog-bot]

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[Gilbert09]

I get that we're just dropping this in from existing code. Still, we need to replace the current editor ASAP - having multiple versions of this code will cause nightmares when people update existing BI stuff without knowing this exists.