feat: open users with skill filter

[thelostone-mc]

Description

http://localhost:8000/users?skills=html,PHP activates the filters and it works as expected

Refers/Fixes

closes #5014

Test

https://embed.vidyard.com/share/7ksCTEBQJc6C3BEZGXF4mb?

[octavioamu]

@thelostone-mc the problem was in vm.params.skills = skills.split(','); as that deep object assignment is not reactive. So the solution is in that scenarios using set vm.$set(vm.params, 'skills', skills.split(',')); and problem solved.
I made a few changes to make this feature available to all the filters so now can be set by url like http://localhost:8000/users?skills=css,javascript&bounties_completed=0,5

[thelostone-mc]

Ahh got it from https://vuejs.org/v2/guide/reactivity.html#Change-Detection-Caveats! Niceee 🙌