fix(modals): always pass environment to useModal hook

[Fredx87]

Description

This PR fixes an issue with the Modal and the TooltipDialog component, which were not passing the document eventually provided in the Garden theme to the useModal hook.

Detail

This should improve the support for rendering modals inside a Shadow DOM element.

Closes #2058.

Checklist

• 🌐 demo is up-to-date (npm start)
• ⬅️ renders as expected with reversed (RTL) direction
• ⚫ renders as expected in dark mode
• 🤘 renders as expected with Bedrock CSS (?bedrock)
• 💂‍♂️ includes new unit tests. Maintain existing coverage (always >= 96%)
• ♿ tested for WCAG 2.1 AA accessibility compliance
• 📝 tested in Chrome, Firefox, Safari, and Edge

[jzempel]

Thanks so much for the contribution @Fredx87