Minor stuff reported posts

Sooooooo this took longer than I expected but here it is. This PR adds some new functionalities to the reported posts page:

- Separates the whole page from Sources/ModerationCenter.php file.
- Adds the ability to delete/edit moderator comments, only admins and the comment author can edit/delete a comment this fixes #1248
- Adds some html improvements on how moderator comments are displayed.
- Separates queries into a Subs-ReportedPosts.php file
- Adds tokens for all CRUD actions.
- Replaces a couple of onClick actions with jQuery on.() method.
- Adds a confirmation message for all moderator comments and report CRUD actions.
- Uses {literal} where applicable.
- Some other minor stuff.

I also added some new txt strings so the usual check must be done. I tested as much as I could but chances are I'm still missing something.