Comment out / add note about conflicting gitignore lines (#3204)

* Remove conflicting gitignore lines, add reference

Ref (introduction of a new "public" folder in Next.js):
https://nextjs.org/blog/next-9-1#public-directory-support

* Improve solution to conflicting files

community/JavaScript/Nuxt.gitignore

@@ -1,9 +0,0 @@
-# gitignore template for Nuxt.js projects
-#
-# Recommended template: Node.gitignore
-
-# Nuxt build
-.nuxt
-
- # Nuxt generate
-dist