fix: add text sanitization function to clean user and assistant messages of new parts object

- Introduced a `sanitizeText` function to remove specific HTML elements and content from messages, enhancing the integrity of the streamed text.
- Updated the `streamText` function to utilize `sanitizeText` for both user and assistant messages, ensuring consistent message formatting.
- Adjusted message processing to maintain the structure while applying sanitization.

app/lib/stores/files.ts

@@ -597,7 +597,11 @@ export class FilesStore {
 
     // Set up file watcher
     webcontainer.internal.watchPaths(
-      { include: [`${WORK_DIR}/**`], exclude: ['**/node_modules', '.git'], includeContent: true },
+      {
+        include: [`${WORK_DIR}/**`],
+        exclude: ['**/node_modules', '.git', '**/package-lock.json'],
+        includeContent: true,
+      },
       bufferWatchEvents(100, this.#processEventBuffer.bind(this)),
     );