Update Tesseract.js (#14708)

* [WiP] Update Tesseract.js

- Update Tesseract.js to 2.2.1
- Use versioned file names
- differentiate two progression states: preparing OCR and detecting picture

* Get rid of copy-webpack-plugin

config/webpack/shared.js

@@ -5,7 +5,6 @@ const { basename, dirname, join, relative, resolve } = require('path');
 const { sync } = require('glob');
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const AssetsManifestPlugin = require('webpack-assets-manifest');
-const CopyPlugin = require('copy-webpack-plugin');
 const extname = require('path-complete-extname');
 const { env, settings, themes, output } = require('./configuration');
 const rules = require('./rules');
@@ -85,12 +84,6 @@ module.exports = {
       writeToDisk: true,
       publicPath: true,
     }),
-    new CopyPlugin({
-      patterns: [
-        { from: 'node_modules/tesseract.js/dist/worker.min.js', to: 'ocr' },
-        { from: 'node_modules/tesseract.js-core/tesseract-core.wasm.js', to: 'ocr' },
-      ],
-    }),
   ],
 
   resolve: {