[Docs] introduction page throws an error after navigation

[tchin25]

Environment

• All current versions of Chrome, Firefox, and Edge

Reproduction

1. Go to the introduction page
2. Click on any other page on the left sidebar
3. Click on any section in the right table of contents
4. Go back to the introduction page

Describe the bug

No idea what's going on since the Docs repo isn't available yet.

In Firefox this throws "TypeError: e.value is null" while on Chrome/Edge it's "TypeError: Cannot read properties of null (reading 'querySelectorAll')"

Additional context

No response

Logs

No response

[danielroe]

Transferring to (currently) private https://github.com/nuxt/nuxt.com repo to track there.