* remove `@return` docblocks on constructors

PHP constructors don't really return anything, so the docblock is kind of unnecessary. this also brings consistency since we have some that use the tag and some that do not.

we have a total of 557 constructors in the framework, so we definitely used it more than we didn't, but my personal opinion is this direction makes more sense.

https://docs.phpdoc.org/guide/references/phpdoc/tags/return.html#return
https://github.com/laravel/framework/issues/702
https://www.php.net/manual/en/language.oop5.decon.php

* minor formatting

* minor formatting