feat(ffi): expose method for reading the server name part of the curr…

…ent user's identifier.

bindings/matrix-sdk-ffi/src/client.rs

@@ -416,6 +416,7 @@ impl Client {
         })))
     }
 
+    /// Allows generic GET requests to be made through the SDKs internal HTTP client
     pub async fn get_url(&self, url: String) -> Result<String, ClientError> {
         let http_client = self.inner.http_client();
         Ok(http_client.get(url).send().await?.text().await?)
@@ -499,6 +500,12 @@ impl Client {
         Ok(user_id.to_string())
     }
 
+    /// The server name part of the current user ID
+    pub fn user_id_server_name(&self) -> Result<String, ClientError> {
+        let user_id = self.inner.user_id().context("No User ID found")?;
+        Ok(user_id.server_name().to_string())
+    }
+
     pub async fn display_name(&self) -> Result<String, ClientError> {
         let display_name =
             self.inner.account().get_display_name().await?.context("No User ID found")?;