Fix: escape with empty textarea not generating response

tui.go

@@ -997,7 +997,6 @@ func init() {
 				return nil
 			}
 			msgText := textArea.GetText()
-			if msgText != "" {
 			nl := "\n\n" // keep empty lines between messages
 			prevText := textView.GetText(true)
 			persona := cfg.UserRole
@@ -1032,7 +1031,6 @@ func init() {
 			}
 			// go chatRound(msgText, persona, textView, false, false)
 			chatRoundChan <- &models.ChatRoundReq{Role: persona, UserMsg: msgText}
-			}
 			return nil
 		}
 		if event.Key() == tcell.KeyPgUp || event.Key() == tcell.KeyPgDn {