chore: install dev container comfystream in edit mode (#65)

This commit ensures that the comfystream package is installed in
editable mode so that code changes are directly reflected in the dev
environment.

Co-authored-by: John | Elite Encoder <john@eliteencoder.net>

Author: rickstaa

.devcontainer/post-create.sh

@@ -1,7 +1,11 @@
 #!/bin/bash
+
+# Install Comfystream in editable mode.
+pip install -e /workspace/comfystream 
+
+# Create a symlink to the entrypoint script.
 chmod +x /workspace/comfystream/docker/entrypoint.sh
 cd /workspace/comfystream
-
 echo 'alias prepare_examples="/workspace/comfystream/docker/entrypoint.sh --download-models --build-engines"' >> ~/.bashrc
 echo -e "\e[32mContainer ready! Run 'prepare_examples' to download models and build engines for example workflows.\e[0m"