Quote reply for Chat

Adds a button to copy links to threads on Chat and adds a button to messages to quote reply. Adds a button to copy links to conversations in Google Chat and adds a button to quote a reply. Google Chat does not make it easy to refer to chat threads by linking to them. This plugin adds a button to each thread to copy a link to it and also adds a button to quote messages in a reply. Select part of a message and click the quote reply button to quote that specific part, or simply click quote reply to quote the full message.