minor: Simplify Document.language_id()

helix-view/src/document.rs

@@ -854,9 +854,11 @@ impl Document {
     /// `language-server` configuration, or the document language if no
     /// `language-id` has been specified.
     pub fn language_id(&self) -> Option<&str> {
-        self.language_config()
+        self.language_config()?
-            .and_then(|config| config.language_server.as_ref())
+            .language_server
-            .and_then(|lsp_config| lsp_config.language_id.as_deref())
+            .as_ref()?
+            .language_id
+            .as_deref()
             .or_else(|| Some(self.language()?.rsplit_once('.')?.1))
     }