next.js

ac287e67 - Fixed Favicons URL mismatch across the project in [examples/blog-starter] (#29990)

Fixed Favicons URL mismatch across the project in [examples/blog-starter] (#29990) ## Bug There is URL mismatch about the destination of favicons across the project in [examples/blog-starter](https://github.com/vercel/next.js/tree/canary/examples/blog-starter) i.e. `site.webmanifest` and `meta.js` are in a disagreement, triggering web app manifest initialization errors in Application tab of dev tools. ([relevant file](https://github.com/vercel/next.js/blob/5edfbf276e644e985a68127ea2bdf63444f21e94/examples/blog-starter/public/favicon/site.webmanifest)) ## Fix This PR: 1. Renames folder to plural `favicons` 2. Adjusts `favicons/*.png` urls in `meta.js`