fix: update broken Flutter and Dart tutorial links

[UnderTheHoodRobin]

Description of what this PR is changing or adding, and why:
Fixes two broken links in the documentation:

• Getting started with Dart → now points to the official https://dart.dev/learn/tutorial
• Introduction to Flutter UI → updated to the current correct URL https://docs.flutter.dev/learn/tutorial/create-an-app

Both links now work correctly and point to the latest official tutorials.

Presubmit checklist

• If you are unwilling, or unable, to sign the CLA, even for a tiny, one-word PR, please file an issue instead of a PR.
• If this PR is not meant to land until a future stable release, mark it as draft with an explanation.
• This PR follows the Google Developer Documentation Style Guidelines—for example, it doesn't use i.e. or e.g., and it avoids I and we (first-person pronouns).
• This PR uses semantic line breaks
  of 80 characters or fewer.

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[gemini-code-assist]

Summary of Changes

Hello @UnderTheHoodRobin, 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 addresses broken links within the documentation by updating two key tutorial references. The changes ensure that users are directed to the correct and up-to-date official resources for learning Dart and Flutter UI development, improving the overall accuracy and usability of the documentation.

Highlights

• Dart Tutorial Link Update: The 'Getting started with Dart' tutorial link has been updated from a site-relative path to the official 'https://dart.dev/learn/tutorial'.
• Flutter UI Tutorial Link Update: The 'Introduction to Flutter UI' tutorial link has been corrected to 'https://docs.flutter.dev/ui/layout/tutorial'.

🧠 New Feature in Public Preview: You can now enable Memory to help Gemini Code Assist learn from your team's feedback. This makes future code reviews more consistent and personalized to your project's style. Click here to enable Memory in your admin console.

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 fixes two broken links in the documentation. The update for the 'Getting started with Dart' link is correct. However, for the 'Introduction to Flutter UI' link, there is a discrepancy between the URL implemented in the code and the one mentioned in the pull request description. I've left a comment to address this inconsistency.

[sfshaza2]

lgtm!

[sfshaza2]

Thanks for fixing this!

[sfshaza2]

/gcbrun

[flutter-website-bot]

Visit the preview URL for this PR (updated for commit 723c0a3):

https://flutter-docs-prod--pr12993-patch-1-t0ecyvid.web.app