Unable to x out days left in your trial warning

### Describe the bug

When using metabase cloud and the end of trial warning becomes visible the x button does not remove the banner

### To Reproduce

1. Reach near end of trial
2. Click on x button in banner

### Expected behavior

Banner should become hidden

### Logs

_No response_

### Information about your Metabase installation

```JSON
{
"browser-info": {
"language": "en-US",
"platform": "Linux x86_64",
"userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36",
"vendor": "Google Inc."
},
"metabase-info": {
"databases": [
"postgres",
"clickhouse",
"sqlite",
"sqlserver"
],
"run-mode": "prod",
"plan-alias": "starter",
"version": {
"date": "2026-07-29",
"tag": "v1.63.2",
"hash": "9a6cadd"
},
"settings": {
"report-timezone": null
},
"hosting-env": "unknown",
"application-database": "postgres"
}
}
```

### Severity

low

### Additional context

_No response_

Start by reproducing the trial warning in Metabase Cloud and inspect the banner's dismiss behavior when the x button is clicked. Done means the end-of-trial banner becomes hidden after dismissal, while the existing trial-warning behavior remains intact.

Written by the indexing model from the issue text.