* Update project.pbxproj files to say Flutter rather than Chromium

Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.

* Update the copyright notice checker to require a standard notice on all files

* Update copyrights on Dart files. (This was a mechanical commit.)

* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.

Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).

* Clean up the copyrights in non-Dart files. (Manual edits.)

Also, make sure templates don't have copyrights.

* Fix some more ORGANIZATIONNAMEs

No code changes, just comments: I spell-checked all the comments in the repo.

* Sort Localization generation output

- When creating locales that were assumed from existing locales, the
file that is used is non-deterministic. This adds a sort to the iterator
to ensure that the same existing locale is used to generate the assumed
locale
- When generating material, cupertino and date localizations, the generated getters were not sorted. This
introduces an alphabetic sort

* remove main.dart.snapshot

Updates localizations to match what is now generated. It's unclear what caused the change: it didn't happen because of a flutter PR change, so we're still looking for where the source of the non-determinism is.  In the meantime, this will fix the build.

* Refresh .arb files

* Refresh localizations

This fixes a breakage in fuchsia where package_config version 1.1.0 is
required but flutter_tools is currently locked to 1.05.

Revert "fix devicelab manfiest (#33698)"

This reverts commit 5a6a00dc.
This reverts commit 0d79f0fc.

This relands flutter/flutter#33163 with a fix to the integration_ui test.

This reverts commit 52ae9968.

* Clean up some flutter_tools tests

* Remove arbitrary retry that happens even for fundamental errors, and generally clean up _DevFSHttpWriter.

* Update dependencies (requires fixes; see next commit)

* Fixes for new dependencies.

* Updating dart.dev related links

* Update packages/flutter_tools/lib/src/base/context.dart

Revert "Cupertino localization step 12: push translation for all supported languages (#31644)" (#32470)

This reverts commit 10922df6.

Fixed several layout issues with the material date picker. Mostly just removed hard coded sizes to allow the grid view to scroll instead of overflowing.