Add a feature where recent public channel messages can be echoed back to
newly joining users when they enter the chat room.
* Configure in settings.toml with EchoMessagesOnJoin. 0 = disable storage.
* Messages are stored in RAM and lost on a server reboot.
* A buffer of recent public messages per channel can be kept, e.g. for the
10 most recent messages.
* The settings can be reloaded with /reconfigure and the message buffers
will rebalance on the next message sent.
* When a new user logs in, a new "echo" message is sent that contains all
of the echoed messages on a "messages" list, in one WebSocket packet.
* Echoed messages are put above the ChatServer welcome messages.
* If a message is taken back, it's removed from the echo message buffer.
Other Changes
* Don't broadcast Presence messages within 30 seconds of the server boot, to
lessen a flood of messages when a lot of users were connected at reboot.
* Change the default "Join messages" setting on front-end to hide them in
public channels.
* For the admin buttons in ProfileModal, use the AlertModal instead of native
browser prompts.
* When an admin has marked your camera 'red' for you, the Explicit button at the
top of the page now will require *two* clicks if the user wants to set their
camera back to blue:
On first click, they will get a red ChatClient message explaining that their
cam was most-recently marked red due to a server action (such as a moderator
flagging their cam for them). If they really mean to mark their camera blue,
they are instructed to click it a second time to confirm.
* This behavior only occurs when the most recent NSFW setting was dictated by
the server (e.g. a 'me' event disagreed with the page's local NSFW setting).
The flag is cleared any time the user themself toggles the flag, or when the
first ChatClient warning after a server event is shown.
* The explicit camera settings in the broadcast modal have been rearranged and
reworded.
* Add an 'advanced' webcam feature to automatically broadcast in the future on
page load. The option is only available in the Chat Settings 'Camera' tab
after you are already broadcasting (or rather: when a list of video devices
have become available to the page, indicating the user has possibly granted
permission already).
Add moderation rules:
* You can apply rules in the settings.toml to enforce moderator restrictions on
certain users, e.g. to force their camera to always be NSFW or bar them from
sharing their webcam at all anymore.
Chat UI improvements around users blocking admin accounts:
* When a main website block is in place, the DMs button in the Who List shows
as greyed out with a cross through, as if that user had closed their DMs.
* Admin users are always able to watch the camera of people who have blocked
them. The broadcaster is not notified about the watch.
New operator commands:
* /cut username: to tell a user to turn off their webcam.
* /unmute-all: to lift all mutes on your side, e.g. so your moderator chatbot
can still see public messages from users who have blocked it.
* /help-advanced: moved the more dangerous admin command documentation here.
Miscellaneous fixes:
* The admin commands now tolerate an @ prefix in front of usernames.
* The /nsfw command won't fire unless the user's camera is actually active and
not marked as explicit.
