message: change Composer placeholder text based on replying/rich quoting state
diff: "Upload file": "Upload file",
  "Show Text Formatting Toolbar": "Show Text Formatting Toolbar",
  "Send an encrypted message": "Send an encrypted message",
  + "Send an encrypted reply": "Send an encrypted reply",
  "Send a message (unencrypted)": "Send a message (unencrypted)",
  + "Send a reply (unencrypted)": "Send a reply (unencrypted)",
  "You do not have permission to post to this room": "You do not have permission to post to this room",
  "Turn Markdown on": "Turn Markdown on",
  "Turn Markdown off": "Turn Markdown off",
  