issue #3455: removing non breakable space

removing (&nbsp) which is visible on the website. where it is not expressed as a space but it's as it is.

public/locales/en/landing-page.json

@@ -50,7 +50,7 @@
         "title": "Join our great community!",
         "subtitle": "We're a community of great people who are passionate about AsyncAPI and event-driven architectures.",
         "slackCTATitle": "Join our Slack workspace",
-        "slackCTADesc": "We welcome everyone to join our Slack workspace. If you have a question on how to use AsyncAPI, want to contribute, or simply want to say hello 👋  you're welcome to join us. We're nice people 🙂",
+        "slackCTADesc": "We welcome everyone to join our Slack workspace. If you have a question on how to use AsyncAPI, want to contribute, or simply want to say hello 👋, you're welcome to join us. We're nice people 🙂",
         "slackCTABtn": "Join us!",
         "meetingTitle": "Join our public meetings",
         "meetingDesc": "AsyncAPI hosts different meetings every week. They are focused on different topics, sometimes purely technical and sometimes about community building. Pick one and join us!",