Replace browserTarget with buildTarget in angular.json

Proprietary

Renames the browserTarget option to buildTarget on the dev-server and extract-i18n builders. Angular 19 removed browserTarget. Matches the update-workspace-config schematic.

org.openrewrite.angular.migration.replace-browser-target
mod run . --recipe=org.openrewrite.angular.migration.replace-browser-target

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.