Fix docker build, integration test (#1533)

* fix docker build

* revert plugins

* fix imports

* fix import

* fix one more import

containers/app/Dockerfile

@@ -60,7 +60,7 @@ USER opendevin
 
 COPY --chown=opendevin ./opendevin ./opendevin
 COPY --chown=opendevin ./agenthub ./agenthub
-RUN python opendevin/download.py # No-op to download assets
+RUN python opendevin/core/download.py # No-op to download assets
 RUN playwright install --with-deps chromium
 
 COPY --chown=opendevin --from=frontend-builder /app/dist ./frontend/dist