Slate Chat

• Escape always closes the chat, also beside mods that take the key for themselves (Chat Impressive Animation did; reported by Mysticpasta1).
• With the chat closed, the first line after a quiet while is no longer cut off when another mod lifts the chat (Overflowing Bars does), and a line that follows its sender's last one by more than ten seconds names the sender again.
• With the chat closed, new lines show whichever tab was open last, so system messages no longer wait until the chat is opened.
• Lines typed in the Team tab go to the team instead of the public chat.
• A picked GIF whose link is longer than a chat line may be is refused with a message instead of disconnecting you.
• New mod icon.

Slate modules need the Slate Core of their own version: update all of them together.