Fix broken video link, and add unlighthouse to the ressources (kamranahmedse#5527)

* Update 112-lighthouse.md

* fix: broken youtube link

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Co-authored-by: Arik Chakma <[email protected]>

Author: CinquinAndy

src/data/roadmaps/frontend/content/117-progressive-web-apps/112-lighthouse.md

@@ -9,4 +9,4 @@ Lighthouse provides a comprehensive and easy-to-use tool for identifying and fix
 Visit the following resources to learn more:
 
 - [Lighthouse - Google Developers](https://developers.google.com/web/tools/lighthouse)
-- [Improving Load Performance - Chrome DevTools 101](https://www.youtube.com/watch?v=5flw5q5odie)
+- [Improving Load Performance - Chrome DevTools 101](https://www.youtube.com/watch?v=5fLW5Q5ODiE)