fix: correct malformed diff syntax in migrate-to-agp-9.md

[sfshaza2]

Fixes #12878.

Updated src/content/release/breaking-changes/migrate-to-agp-9.md to use correct diff syntax by ensuring spaces after diff markers (-, +). This fixes the issue where some characters (like }) were potentially being swallowed or rendered incorrectly.

[gemini-code-assist]

Summary of Changes

Hello @sfshaza2, 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 a minor but crucial formatting error within a documentation file. By correcting the diff syntax to include spaces after the + and - markers, it ensures that code examples are rendered correctly and are easily readable, preventing potential misinterpretations for users migrating to AGP 9.

Highlights

• Documentation Formatting: Fixed malformed diff syntax in src/content/release/breaking-changes/migrate-to-agp-9.md by ensuring a space follows diff markers (-, +), resolving potential rendering issues for code examples.

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[gemini-code-assist]

Code Review

This pull request correctly fixes the diff syntax in migrate-to-agp-9.md by adding spaces after the + and - markers, which will improve how the code blocks are rendered. I've added one suggestion to further improve the clarity of an added code snippet by indenting it to match its intended placement within the android block. This will help prevent confusion for developers copying the code. You might also consider checking other documentation files for similar diff syntax issues that could be addressed in a follow-up.

[flutter-website-bot]

Visit the preview URL for this PR (updated for commit 40ddff5):

https://flutter-docs-prod--pr12885-fix-issue-12878-l8vnxc07.web.app

[parlough]

Thanks for working on this @sfshaza2! I pushed some additional fixes in 40ddff5 as the + and - for our diff handling are meant to be at the beginning of the line.