Gen AI Accept/Reject buttons hidden behind plot at top of cell

[schlich]

Describe the bug

See the green/red thin stripe at the lower left of this screencap

Environment

{                                                                                                                                             
  "marimo": "0.11.17",                                                                                                                        
  "OS": "Windows",                                                                                                                            
  "OS Version": "11",
  "Processor": "Intel64 Family 6 Model 142 Stepping 12, GenuineIntel",
  "Python Version": "3.13.2",
  "Binaries": {
    "Browser": "135.0.7049.96",
    "Node": "v22.14.0"
  },
  "Dependencies": {
    "click": "8.1.8",
    "docutils": "0.21.2",
    "itsdangerous": "2.2.0",
    "jedi": "0.19.2",
    "markdown": "3.6",
    "narwhals": "1.29.1",
    "packaging": "24.2",
    "psutil": "7.0.0",
    "pygments": "2.19.1",
    "pymdown-extensions": "10.14.3",
    "pyyaml": "6.0.2",
    "ruff": "0.9.10",
    "starlette": "0.46.1",
    "tomlkit": "0.13.2",
    "typing-extensions": "4.12.2",
    "uvicorn": "0.34.0",
    "websockets": "15.0.1"
  },
  "Optional Dependencies": {},
  "Experimental Flags": {
    "lsp": true,
    "inline_ai_tooltip": true
  }
}

Code to reproduce

No response