fix: append pending inline text at resolution time rather than immediately during close if blocked

This fixes an issue where an inline host node
would remain empty if it was the last node in
the tree and a blocking node was encountered.

Author: 1000hz

src/index.ts

@@ -74,11 +74,13 @@ export = function writableDOM(
       }
     },
     close() {
-      appendInlineTextIfNeeded(pendingText, inlineHostNode);
-
-      return isBlocked
+      const promise = isBlocked
         ? new Promise<void>((_) => (resolve = _))
         : Promise.resolve();
+
+      return promise.then(() => {
+        appendInlineTextIfNeeded(pendingText, inlineHostNode);
+      });
     },
   };