Fix missing imports.

Dockerfile

@@ -57,7 +57,7 @@ COPY . .
 
 # Install Python dependencies
 RUN python3 src/freva_deployment/__init__.py && \
-    python3 -m pip install pyinstaller rich-argparse namegenerator && \
+    python3 -m pip install pyinstaller rich-argparse namegenerator npyscreen && \
     python3 -m pip install --no-deps . &&\
     python3 pyinstaller/pre-win.py &&\
     rm -rf /root/.cache/pip && \