* 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

* 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

* 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.

Cupertino localization step 8: create a gen_cupertino_localizations and generate one for cupertino english and french (#29824)

Cupertino localization step 7: modularize material specific things out of gen_localizations.dart (#29822)

Cupertino localization step 3: in-place move some material tools around to make room for cupertino (#29644)

* add trailing commas on list/map/parameters

* add trailing commas on Invocation with nb of arg>1

* add commas for widget containing widgets

* add trailing commas if instantiation contains trailing comma

* revert bad change

* remove ignore_for_file lints

* update comments

* remove example

* add missing entry to material_mr.arb

* Make progress indicators accessible