Add YouTube to the footer social icons (#70)

Author: conradolandia

src/lib/components/Button.svelte

@@ -21,6 +21,7 @@
     facebook: "BsFacebook",
     github: "BsGithub",
     instagram: "BsInstagram",
+    youtube: "BsYoutube",
     linux: "VscTerminalLinux",
     mac: "BsApple",
     mastodon: "BsMastodon",

src/lib/config/data/config.yaml

@@ -30,6 +30,7 @@ site:
     github: https://github.com/spyder-ide/spyder
     twitter: https://twitter.com/spyder_ide
     facebook: https://www.facebook.com/SpyderIDE
+    youtube: https://www.youtube.com/@SpyderIDE
     mastodon: https://fosstodon.org/@Spyder
     instagram: https://instagram.com/spyderide
     rss: https://www.spyder-ide.org/blog/feed.xml