Tie FES initialization to only run just before p5 init

Author: limzykenneth

src/core/friendly_errors/sketch_reader.js

@@ -403,6 +403,6 @@ if (typeof IS_MINIFIED !== 'undefined') {
 
   p5._fesCodeReader = fesCodeReader;
 
-  window.addEventListener('load', p5._fesCodeReader);
+  window.addEventListener('p5Ready', p5._fesCodeReader);
 }
 export default p5;

src/core/init.js

@@ -32,6 +32,8 @@ const _globalInit = () => {
         (window.draw && typeof window.draw === 'function')) &&
       !p5.instance
     ) {
+      const p5ReadyEvent = new Event('p5Ready');
+      window.dispatchEvent(p5ReadyEvent);
       new p5();
     }
   }