feat: add Threads social links (mmistakes#1837)

Author: goodnightdaniel

_data/contact.yml

@@ -34,3 +34,7 @@
 # - type: reddit
 #   icon: 'fa-brands fa-reddit'
 #   url: ''                   # Fill with your Reddit profile link
+#
+# - type: threads
+#   icon: 'fa-brands fa-threads'
+#   url: ''                   # Fill with your Threads profile link

_data/share.yml

@@ -44,3 +44,7 @@ platforms:
   # - type: Reddit
   #   icon: "fa-brands fa-square-reddit"
   #   link: "https://www.reddit.com/submit?url=URL&title=TITLE"
+  #
+  # - type: Threads
+  #   icon: "fa-brands fa-square-threads"
+  #   link: "https://www.threads.net/intent/post?text=TITLE%20URL"