Make Conversation a pointer refernece on Message

Instead of a value, which lead some odd handling of conversation
references.

Also fixed some formatting and removed an unnecessary (and probably
broken) setting of ConversationID in a call to
`cmdutil.HandleConversationReply`

pkg/cmd/reply.go

@@ -31,9 +31,8 @@ func ReplyCmd(ctx *lmcli.Context) *cobra.Command {
 			}
 
 			cmdutil.HandleConversationReply(ctx, conversation, true, model.Message{
-				ConversationID: conversation.ID,
-				Role:           model.MessageRoleUser,
-				Content:        reply,
+				Role:    model.MessageRoleUser,
+				Content: reply,
 			})
 			return nil
 		},