I got carried away with Gemini and basically rewrote CI and the release
process for the new LLM reality. This work was largely completed by
Gemini.
- Bump all SDK versions to the current beta (3.9.0-0)
- Run `flutter channel beta`
- Wrote `ci_script.dart` to replace the bash scripts
- Converted repository to pub workspace #2499
- Added llm.md and release.md
- Added redirect for deprecated Samples Index
## Pre-launch Checklist
- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I have added sample code updates to the [changelog].
- [x] I updated/added relevant documentation (doc comments with `///`).
* add go_router
* wip migration to go_router
* small fixes
* home screen cleanup
* remove unused
* small fixes
* details should be fullscreen dialog
* remove comment
* fix navigation outside the shell by using the correct navigation keys
* add restoration id to all pages
* test passing, but parts are commented out, wip
* uncommented more test code
* Add TODOs
* fix lint issues
* fix tests
* use FadeTransitionPage
* remove unnecessary builders
* FadeTransitionPage same as CustomTransitionPage
* add comments regarding relative routes
* add missing pageKey
* add missing const
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Co-authored-by: Brett Morgan <brettmorgan@google.com>
