chore: remove HubSpot chat integration

[tannerlinsley]

Summary

• Removes the HubSpot chat widget integration (hook, root call, CSS rule)
• Deletes the now-unused useScript hook (was only consumed by useHubSpotChat)

Test plan

• tsc clean
• lint clean

Summary by CodeRabbit

• Revert
  • Removed HubSpot chat widget integration from the application, including chat loading logic, script injection, and related styling. The chat widget will no longer be displayed to end-users.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 22de37f8-6eac-4eca-bef0-430351c6196b

📥 Commits

Reviewing files that changed from the base of the PR and between 180ddd3 and 271fe3c.

📒 Files selected for processing (4)

• src/hooks/useHubSpotChat.ts
• src/hooks/useScript.ts
• src/routes/__root.tsx
• src/styles/app.css

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📝 Walkthrough

Walkthrough

This pull request removes all HubSpot chat widget functionality from the codebase, including the custom hooks that managed conditional script loading and the associated styling. The integration is completely eliminated across hooks, routing, and stylesheets.

Changes

Cohort / File(s)	Summary
HubSpot Chat Integration Removal src/hooks/useHubSpotChat.ts, src/hooks/useScript.ts	Deleted the useHubSpotChat hook, HubSpotChatConfig interface, and the underlying useScript hook that handled dynamic script injection with configurable delays.
HubSpot Chat Runtime References src/routes/__root.tsx	Removed import and invocation of the useHubSpotChat hook from the root shell component.
HubSpot Chat Styling src/styles/app.css	Removed CSS rules that applied positional translation and dark-mode styling to the HubSpot messages iframe container.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Poem

🐰 The chatbot hops away, no more,
HubSpot scripts deleted to the core,
Styles erased with a whisker's twitch,
No iframe left without a glitch!
Clean codebase hops forevermore. 🎉

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch taren/lucid-feistel-bb7521

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