Release 0.7.1

### Changed - The server now compresses its API answers, such as a chat's messages and the chat list, for browsers that accept it, so they download faster without a reverse proxy doing it. Live event streams are left uncompressed. - Moving from New chat to a chat, or back, no longer reloads the chat list. For forks: `ChatPage` is now the chat routes' layout and takes the open pane as `children`, and `OpenChat` draws an open conversation.