tui: Error handling tweak

Moved errors to bottom of screen, fix infinite loop by typing errors
properly

pkg/tui/views/chat/update.go

@@ -170,7 +170,7 @@ func (m *Model) Update(msg tea.Msg) (shared.ViewModel, tea.Cmd) {
 	case msgChatResponseError:
 		m.state = idle
 		m.updateContent()
-		return m, shared.WrapError(msg)
+		return m, shared.WrapError(msg.Err)
 	case msgToolResults:
 		last := len(m.App.Messages) - 1
 		if last < 0 {