A better default that saves the whopping amount of 28KB on the final bundle (#4177)

src/CMakeLists.txt

@@ -70,7 +70,8 @@ endif()
 if (${PLATFORM} MATCHES "Web")
     target_link_options(raylib PUBLIC "-sUSE_GLFW=3")
     if(${GRAPHICS} MATCHES "GRAPHICS_API_OPENGL_ES3")
-        target_link_options(raylib PUBLIC "-sFULL_ES3")
+        target_link_options(raylib PUBLIC "-sMIN_WEBGL_VERSION=2")
+        target_link_options(raylib PUBLIC "-sMAX_WEBGL_VERSION=2")
     endif()
 endif()