Add `tootctl media lookup` command (#12283)

Add `tootctl media lookup` command (#12283)

* Add a lookup tool to the media cli

* Improved lookup logic

* Clarified wording in the output

* Code style changes

* Code style changes

* Code style changes

* Code style changes

* Add error handling code incase an attachment isn't found

* Code style changes

* Code style changes

* Make requested changes

* Fix styling issues

* Handle other media types

* Remove an inadvertently added log

* Make requested changes

* Make the code safe no matter what the path, S3 or not

* Code style changes

* Code style changes

* Replace select method with Ruby Enumerable grep method