Fix Dockerfile

Author: eel76-hmi

.devcontainer/Dockerfile

@@ -2,9 +2,12 @@ ARG VARIANT=ubuntu-20.04
 FROM mcr.microsoft.com/vscode/devcontainers/cpp:0-${VARIANT}
 
 RUN apt-get update && apt-get install -y \
-    git python python3.8-venv pip pipx \
+    python python3.8-venv pip pipx \
     && rm -rf /var/lib/apt/lists/*
 
-RUN pip install clang-format && pip install pre-commit
+RUN pip install clang-format pre-commit
+
+COPY . /home/traits
+WORKDIR /home/traits
 
 RUN pre-commit install