build: update Dockerfile.

Author: liqiang-fit2cloud

installer/Dockerfile

@@ -17,7 +17,7 @@ RUN apt-get update && \
 
 COPY . /opt/maxkb-app
 RUN mkdir -p /opt/maxkb-app /opt/maxkb-app/model && \
-    rm -rf /opt/maxkb/app/ui
+    rm -rf /opt/maxkb-app/ui
 
 COPY --from=web-build ui /opt/maxkb-app/ui
 WORKDIR /opt/maxkb-app
@@ -54,7 +54,7 @@ ENV MAXKB_VERSION="${DOCKER_IMAGE_TAG} (build at ${BUILD_AT}, commit: ${GITHUB_C
     PYTHONPATH=/opt/maxkb/python-packages \
     PYTHONUNBUFFERED=1
 
-WORKDIR /opt/maxkb/app
+WORKDIR /opt/maxkb-app
 COPY --from=stage-build /opt/maxkb-app /opt/maxkb-app
 COPY --from=stage-build /opt/py3 /opt/py3
 COPY --from=vector-model /opt/maxkb/app/model /opt/maxkb-app/model