marimo: Toggle on-cell-change mode

### Describe the bug When trying to change the toggle ``` marimo: Toggle on-cell-change mode ``` from the manual i get the following error message: ``` 2026-04-03 08:46:35.976 [info] fiber=#460 message="Updating runtime.on_cell_change" from=autorun notebook=file:///home/user/Dokumente/Test/example.py to=lazy 2026-04-03 08:46:35.979 [error] fiber=#460 cause="ParseError: { readonly config: { readonly [x: string]: any } }\n└─ [\"config\"]\n └─ is missing\n\tat QS (/home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:269:81034)\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:229:4426\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:223:44975\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:269:81199\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:223:44975\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:270:21984\n\tat /home/user/.vscode/extensions/marimo-team.vscode-marimo-0.12.0-linux-x64/dist/extension.js:313:9968" ``` ### Environment <details> ``` Replace this line with the output. Leave the backticks in place. ``` </details> ### Steps to reproduce Install the extension in a blank vscode environment.