Webpack 5 support with updated packages (#131)

- Update to Webpack 5
- Use @effortlessmotion dynamic html and inline source plugins
- Remove .clasp.json and use SAMPLE file
- Consistent prettier formatting throughout
- Update packages to latest versions

Co-authored-by: Kevin Malakoff <kmalakoff@gmail.com>

test/utils/image-reporter.js

@@ -2,11 +2,15 @@
 
 /**
  * Reference: https://github.com/americanexpress/jest-image-snapshot/blob/main/examples/image-reporter.js
- * 
+ *
  * To enable this image reporter, add it to your `jest.config.js` "reporters" definition:
  * "reporters": [ "default", "<rootDir>/image-reporter.js" ]
- * 
- * Image Reporter may not work with jest's --forceExit flag
+ *
+ * Note: Image Reporter may not work with jest's --forceExit flag
+ *
+ * Note: If image reporter doesn't work in pipeline can try running as standalone script
+ * by creating a separate script file and running like this:
+ * "test:integration": "jest test/local-development.test || node test/utils/image-reporter-standalone.js"
  */
 
 const fs = require('fs');
@@ -44,9 +48,9 @@ class ImageReporter {
         './test/__image_snapshots__/',
         './test/__image_snapshots__/__diff_output__/',
       ];
-      targetDirectories.forEach(targetDirectory => {
+      targetDirectories.forEach((targetDirectory) => {
         fs.readdirSync(targetDirectory, { withFileTypes: true }).forEach(
-          dirent => {
+          (dirent) => {
             if (!dirent.isFile()) return;
             const path = `images/${dirent.name}`;
             const params = {
@@ -55,7 +59,7 @@ class ImageReporter {
               Key: path,
               ContentType: 'image/png',
             };
-            s3.putObject(params, err => {
+            s3.putObject(params, (err) => {
               if (err) {
                 console.log(err, err.stack);
               } else {