Add Buffer and VM fallbacks to Webpack configuration

Update webpack.config.js to include 'buffer' and 'vm' in resolve.fallback and correctly configure ProvidePlugin for Buffer, resolving the "Buffer is not defined" error and a related 'vm' warning.

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webpack/webpack.config.js

@@ -54,6 +54,7 @@ pluginArray.push(new webpack.ProvidePlugin({
 
 pluginArray.push(new webpack.ProvidePlugin({
   process: 'process/browser',
+  Buffer: ['buffer', 'Buffer'],
 }));
 
 // limit Timezone data from Moment
@@ -163,7 +164,9 @@ module.exports = {
   resolve: {
     fallback: {
       'process/browser': require.resolve('process/browser'),
-      events: require.resolve('events/')
+      events: require.resolve('events/'),
+      buffer: require.resolve('buffer/'),
+      vm: false
     },
     alias: {
       stream: 'stream-browserify',