Hero profile editor improvements

[ribreno]

Hello!

The profile editor could really use some improvement in the usability front, the worst offender in this regard is the avatar tab with it's giant list and inconvenient pagination.

Please have someone in the team review this. Meanwhile, here are my two cents:

• Add a filter for Owned/Not Owned items: I've noticed the improvement in moving the new avatars to the beginning of the list and this is awesome to remove that notification icon but a filter would be even better for when we want to change the hero avatar, theme or other characteristic.
• Add sort options to avatars and themes: date obtained and date added are the main ones in my mind but others like the name of the girl featured in an avatar, price or the name of the item are also welcome if they are already in the metadata for those items.
• Use a more traditional "webpage" pagination for avatars and themes with the option to skip to specific pages and set how many items per page are available. The default 6 items with an unknown number of pages which you need to go through one by one drains quite a long time.