56ddc036e4
Group-chat message bodies in the hermes-bots plugin render without the
data-selectable-text attribute, so they inherit the app-wide
body { user-select: none } and cannot be drag-selected or copied.
1:1 chat messages already carry the equivalent marker
(aui_assistant-message-content), so this aligns group chat with that
behavior by adding data-selectable-text="true" to the message body
wrapper.