src: clean clang-tidy errors in node_file.h

* explicitly delete move overloads
* default initialize all members
* explicitly discard unused return values
* const some possibles

PR-URL: https://github.com/nodejs/node/pull/23793


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>