Rather than running ng-dev via ts-node, going forward ng-dev is generated and run
locally via node. Additionally, the generated file is tested on each commit to
ensure that the local generated version stays up to date.
PR Close#39089
Splits the dev-infra configurations into individual files inside the
`.ng-dev/` folder. This helps with clarity as there is no single
configuration file that becomes extremely large and difficult to
maintain.
Additionally, more explicit configuration types are now used. This
fixed the max-line length setting for commit message validation.
This option is currently named incorrectly and a noop.
PR Close#37890