Remove Flake8 extension and adjust linting settings in devcontainer configuration

Author: m-messer

.devcontainer/devcontainer.json

@@ -8,13 +8,15 @@
       "extensions": [
         "ms-python.python",
         "ms-python.vscode-pylance",
-        "ms-python.flake8",
         "GitHub.copilot",
         "GitHub.copilot-chat"
       ],
       "settings": {
         "python.defaultInterpreterPath": "${workspaceFolder}/.venv/bin/python",
-        "python.terminal.activateEnvironment": true
+        "python.terminal.activateEnvironment": true,
+        "python.linting.enabled": false,
+        "python.linting.flake8Enabled": false,
+        "flake8.args": ["--max-line-length=127", "--extend-ignore=E203,W503"]
       }
     }
   }