Add workspace folder to Python analysis extra paths in devcontainer configuration

Author: m-messer

.devcontainer/devcontainer.json

@@ -14,6 +14,7 @@
       "settings": {
         "python.defaultInterpreterPath": "${workspaceFolder}/.venv/bin/python",
         "python.terminal.activateEnvironment": true,
+        "python.analysis.extraPaths": ["${workspaceFolder}"],
         "python.linting.enabled": false,
         "python.linting.flake8Enabled": false,
         "flake8.args": ["--max-line-length=127", "--extend-ignore=E203,W503"]