Rename the tutorial and example template packages' package.json.template files to package.json on disk.
To comply with ng_package limitations (which forbids floating package.json files in package output), we added a copy_file rule in the BUILD files to generate the .template files during build/packaging, and excluded the source package.json files from the filegroups. This keeps package.json as standard files in the source tree while preserving docs packaging and runtime logic.
To increase the ease of development we are moving @angular/docs into the adev directory within this repo. While
we are doing this to improve our development experience in the short term, efforts are also in place
to maintain a division between this @angular/docs (shared) code and adev itself, so that it can be extracted
back out in the future when components is ready to leverage it as well.
PR Close#57132
Alan Agius