Adding ability to remove and restore comments. #1182

[dessalines]

This adds the ability to remove and restore comments.

It also adds the correct hierarchical logic for the canMod function copied from lemmy-ui, which requires a list of admins and mods.

[dessalines]

I plan on adding more mod-abilities to jerboa in the coming weeks, but this is a good start.

[MV-GH]

I can't test the functionality, not a mod somewhere but I'll take your word on it.

[dessalines]

I've been using voyager.lemmy.ml to test. You can use my test admin account there:

username: dess_tester_3

pass: dess_tester_3dess_tester_3