fix: move copilot credentials to volume

Containerfile

@@ -1,7 +1,7 @@
 FROM docker.io/fedora:41
 
 # === setup system ===
-RUN dnf clean all && dnf -y install neovim unzip \
+RUN dnf -y install neovim unzip \
   bash-completion zoxide fd-find procps \
   git go npm
 
@@ -19,5 +19,5 @@ COPY config/nvim/lazyvim.json /home/user/.config/nvim/lazyvim.json
 
 # === setup container ===
 ENV TZ="Europe/Amsterdam"
-VOLUME /home/user/.local
+VOLUME /home/user/.local /home/user/.config/github-copilot
 CMD ["bash"]