Update linter formatting, add new tests

 - Enforce the bind/unbind service is only called on a @WorkerThread

 - Use heredoc for explanations

 - Add AccountManager.get() to NonInjectedService check

 - Test that sendBroadcast is okay inside BroadcastSender

 - Print only the relevant method name for error messages

 - Make briefDescriptions shorter because they are intended only as
   category headers. They are not intended to contain explanations

 - Follow go/error-messages-format-set-tone guidelines

 - Per lint guidelines, include the whole text output in the test

 - Drop "Detector" suffix from issue IDs

 - Call indented() on stub class files

 - Fix typos

Test: SystemUILintCheckerTest
Bug: 238923086
Change-Id: If74ca77717e5f8c2266fcecfdf59a83b05e06d22