added buffer package and version change

Added buffer as webpack 5 does not use it anymore.
Version change in package.json

package.json

@@ -1,6 +1,6 @@
 {
   "name": "WebODM",
-  "version": "3.0.0",
+  "version": "2.4.0",
   "description": "User-friendly, extendable application and API for processing aerial imagery.",
   "main": "index.js",
   "scripts": {
@@ -68,6 +68,7 @@
     "webpack": "5.89.0",
     "webpack-bundle-tracker": "0.4.3",
     "webpack-livereload-plugin": "3.0.2",
-    "mini-css-extract-plugin": "1.6.2"
+    "mini-css-extract-plugin": "1.6.2",
+    "buffer": "^6.0.3"
   }
 }

webpack.config.js

@@ -88,7 +88,7 @@ module.exports = {
     modules: ['node_modules', 'bower_components'],
     extensions: ['.js', '.jsx'],
     fallback: {
-      "buffer": false
+      buffer: require.resolve('buffer'),
     }
   },