feat(ui): add single select component to form extension

[PetrBulanek]

Closes: #1338

[gemini-code-assist]

Summary of Changes

Hello @PetrBulanek, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a SingleSelectField component to the form extension, significantly enhancing form creation capabilities by allowing users to select a single option from a predefined list. The implementation involves coordinated updates across the Python SDK for field definition, the TypeScript SDK for schema validation and type safety, and the UI for rendering and user interaction. Corresponding documentation has also been updated to reflect these changes.

Highlights

• New SingleSelectField Component: A new SingleSelectField has been introduced to the form extension, enabling single-choice selections within forms.
• SDK Updates: Both the Python and TypeScript SDKs have been updated to define and support the new SingleSelectField type and its corresponding value structure.
• UI Integration and Styling: The UI now includes a dedicated React component for rendering the SingleSelectField, along with necessary logic for form handling and styling adjustments to integrate seamlessly.
• Documentation Updates: The forms.mdx documentation has been updated to include comprehensive details and examples for the new SingleSelectField.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This pull request introduces a new SingleSelectField component to the form extension, enabling single-choice selection from a list of options. The changes are comprehensive, spanning the Python SDK, TypeScript SDK, UI components, styling, and documentation. The implementation is solid, with backend validation for the default value. I've identified a couple of areas for improvement: adding similar validation to the TypeScript schema for consistency and fixing an error in the documentation example for the new field. Overall, this is a great addition.

[PetrBulanek]

@JanPokorny Can you please take a look at this too, see if it makes sense, and can we merge it? :-)