Get rid of the Newsletter page Link In contributing/community.md (#21816)

* Update community.md with EmailCaptureForm

* Delete newsletter.js

* Update redirects.yaml with newsletter link

* Removed hash from redirect.yaml

Author: saadpasta

docs/contributing/community.md

@@ -38,7 +38,7 @@ The Gatsby community welcomes contributions. Please refer to the guides below on
 
 Sign up for the Gatsby newsletter to keep up with the latest from the Gatsby community! Hear about new features, tips & tricks, and what people are building.
 
-[Sign up here](/newsletter/)
+<EmailCaptureForm signupMessage="Want to keep up with the latest tips &amp; tricks? Subscribe to our newsletter!" />
 
 ### Twitter
 

www/redirects.yaml

@@ -130,6 +130,8 @@
   toPath: /docs/data-fetching/
 - fromPath: /docs/centralizing-your-sites-navigation/
   toPath: /docs/creating-dynamic-navigation/
+- fromPath: /newsletter/
+  toPath: /contributing/community/
   # This redirects from a now removed stub that showed up in the first page of Google results.
   # Can be removed if SEO is no longer impacted.
 - fromPath: /docs/rendering-sidebar-navigation-dynamically/