give class members 2 spaces indentation in .d.ts files

crates/cli-support/src/js/mod.rs

@@ -2399,6 +2399,8 @@ impl<'a, 'b> SubContext<'a, 'b> {
             .contents
             .push_str(&format_doc_comments(&export.comments, Some(js_doc)));
 
+        class.typescript.push_str("  "); // Indentation
+
         if export.is_constructor {
             if class.has_constructor {
                 bail!("found duplicate constructor `{}`", export.function.name);