Expose port 8080 in Dockerfile

Add EXPOSE directive in the Dockerfile to allow the container to handle requests on port 8080. This change supports the functionality of the web server running inside the container.

Dockerfile

@@ -25,4 +25,7 @@ ENV PATH="${PATH}:/nix/var/nix/profiles/default/bin"
 CMD [ "/bin/systemd" ]
 
 # Install Devbox using Nix
-RUN nix profile install nixpkgs#devbox
+RUN nix profile install nixpkgs#devbox
+
+# Expose port 8080 to handle requests to web server
+EXPOSE 8080