docs: replace youtube video with new one

[OmriOn]

Closes #

✅ Checklist

• I have followed every step in the contributing guide (updated 2022-10-06).
• The PR title follows the convention we established conventional-commit
• I performed a functional test on my final commit

---

Changelog

Switched the youtube embed on the "Introduction" page from this video to this one.

---

Screenshots

💯

[changeset-bot]

⚠️ No Changeset found

Latest commit: dc7ac7c

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
create-t3-app	✅ Ready (Inspect)	Visit Preview	💬 1 unresolved ✅ 1 resolved	Apr 17, 2024 1:36pm

[vercel]

@OmriOn is attempting to deploy a commit to the t3-oss Team on Vercel.

A member of the Team first needs to authorize it.

[juliusmarminge]

If you'd like we could include both with a toggle for pages vs app router. All our docs are still referencing to pages router so might be a bit misleading to only have a tutorial on app router

[OmriOn]

If you'd like we could include both with a toggle for pages vs app router. All our docs are still referencing to pages router so might be a bit misleading to only have a tutorial on app router

i wont be able to in the next week or so but ill get to it after