As the second part of #227 (closed), this will show back Mutes tab under user settings page along with proper API integration.
Show back Mutes tab
Switch all endpoints related to mute and block to MastoAPI
Reset mutes and blocks while fetching new mutes and blocks
Add Hide posts of muted users option to the settings page; if it is enabled, it won't fetch statuses of muted users at all with help of pleroma!872 (merged)
