Fix map loading and tab navigation v0.4.1

Dockerfile

@@ -4,7 +4,7 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1
 
 RUN apt-get update \
-    && apt-get install -y --no-install-recommends libimage-exiftool-perl \
+    && apt-get install -y --no-install-recommends ca-certificates libimage-exiftool-perl \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app