Exclude own repositories from `hide-zero-packages` #3631

It turns out that the owner of the repo (i.e. pageDetect.canUserEditRepo) can decide to hide the Packages section when editing the repo description:

<img width="822" alt="Screen Shot 2020-10-07 at 23 44 35" src="https://user-images.githubusercontent.com/1402241/95415897-16f48500-08f7-11eb-9b9e-636400afa118.png">

Like we do for Projects, what if we leave the Packages section for the owner? I'm not totally sure that I want to go around my own repositories to hide all those sections though, this was just a thought.