Fix issue 10941: Update IndexedDB example to point to dom-examples

[wbamberg]

Fixes #10941 : having moved the example into the dom-examples repo (mdn/dom-examples#90) this PR updates the page to remove the embedded code and link to dom-examples instead.

[github-actions]

Preview URLs

• https://pr12088.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB

Flaws

URL: /en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB
Title: Using IndexedDB
on GitHub
Flaw count: 3

• broken_links:
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://

External URLs

URL: /en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB
Title: Using IndexedDB
on GitHub

• https://mdn.github.io/dom-examples/indexeddb-api/index.html (1 time) (Note! This may be a new URL 👀)

[Elchi3]

👍