feat(simple_menu): Make scroll buttons configurable

This introduces a config flag to make the right buttons scrollable. I wasn't sure if I should just remove the old option in SimpleMenu but left it for backwards compatibility. If the config is set, it overwrites the SimpleMenu option.

I tested it with the main menu and the menu in the ecg app.

Fixes #204 (closed)

pycardium/modules/py/simple_menu.py

@@ -195,11 +195,8 @@ class Menu:
         self.select_time = time.time_ms()
         self.disp = display.open()
         try:
-            config_right_buttons_scroll = config.get_string("right_scroll")
-            if (
-                config_right_buttons_scroll.lower() == "true"
-                or config_right_buttons_scroll == "1"
-            ):
+            right_scroll_str = config.get_string("right_scroll")
+            if right_scroll_str.lower() in ["true", "1"]:
                 right_buttons_scroll = True
         except OSError:
             right_buttons_scroll = self.right_buttons_scroll