## Issue
7003 Can't unblock if delegator deleted their channel
## Changes
- Changed the function parameter from 'creatorId' to 'creatorUri'
- It got short-circuited because we don't resolve deleted channels. But the client already have the full creator URI (containing the needed 'name' and 'id'), so there is no need to actually look at the resolved list -- just pass the uri like all the other functions.
## Issue
6712 Comment Moderation - time based bans
## Approach
- Consolidated the 3 types of blocking buttons in the comment content menu (i.e. Block, Moderator Block, Admin Block) into 1 regular Block button.
- Show a modal when Block is clicked.
- Let user choose the blocklist.
- Let user choose the timeout duration (this PR's impetus).
* initial support for block/mute
* hide blocked + muted content everywhere
* add info message for blocked/muted characteristics
* sort blocked list by most recent block first
* add 'blocked' message on channel page for channels that you have blocked
* cleanup
* delete unused files
* always pass mute/block list to claim_search on homepage
* PR cleanup
