fixed several bugs

godot/main_scenes/game.tscn

@@ -106,6 +106,9 @@ context_menu_enabled = false
 emoji_menu_enabled = false
 shortcut_keys_enabled = false
 middle_mouse_paste_enabled = false
+deselect_on_focus_loss_enabled = false
 drag_and_drop_selection_enabled = false
+flat = true
+caret_blink = true
 
 [connection signal="text_submitted" from="UI/PanelContainer/VBoxContainer/HBoxContainer/ANSWER" to="." method="_on_answer_text_submitted"]