Satisfies the feature request for mute toggle to display mute status
Adds dynamic mute/unmute option to P2P IM dropdown.
Translators should look into the changes made in this commit for:
floater_chat_history.xml, floater_instant_message.xml, floater_instant_message_concisebuttons.xml
panel_avatar.xml has been taken care of for spanish and french, although they should be looked into more closely by the translators.
Cleanup and Sync in related places~
Removal of old static callbacks.
Moves God Names logic into LFSimFeatureHandler
Adds a custom function LLMuteList::hasMute() for quickly checking if a mute is in the internal set.
cc32df6fd8