Add message dialog asking to save on quit

src/text_editor/window_command.cpp

@@ -2,6 +2,7 @@ void CommandWindowInit() {
     Window *window = CreateWind();
     CommandBarWindowID = window->id;
     Buffer *buffer = CreateBuffer(SysAllocator, "command_bar");
+    buffer->dont_warn_on_save = true;
     View *view = CreateView(buffer->id);
     window->active_view = view->id;
     window->draw_line_numbers = false;