Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
As part of FW-1265, the `zone.js` package is made compatible with the TypeScript `--strict` flag. Read more about the strict flag [here](https://www.typescriptlang.org/docs/handbook/compiler-options.html) PR Close #30993
PR Close #30962