refactor(smallerfonts): simplify to Disabled/Enabled, drop 2pt for Noto and Bookerly, skip OpenDyslexic

plugins/smallerfonts/SmallerFontsPlugin.h

@@ -3,9 +3,8 @@
 #include <Arduino.h>
 
 enum class SmallerFontsMode : uint8_t {
-    MODE_OFF  = 0,
-    SMALLER   = 1,
-    SMALLEST  = 2,
+    MODE_OFF = 0,
+    ENABLED  = 1,
 };
 
 namespace SmallerFontsPlugin {