feat: Add support for terms and conditions when registering

conduwuit-example.toml

@@ -523,6 +523,18 @@
 #
 #recaptcha_private_site_key =
 
+# Policy documents, such as terms and conditions or a privacy policy,
+# which users must agree to when registering an account.
+#
+# Example:
+# ```
+# [global.registration_terms.privacy_policy]
+# en = { name = "Privacy Policy", url = "https://homeserver.example/en/privacy_policy.html" }
+# es = { name = "Política de Privacidad", url = "https://homeserver.example/es/privacy_policy.html" }
+# ```
+#
+#registration_terms = false
+
 # Controls whether encrypted rooms and events are allowed.
 #
 #allow_encryption = true