Migrate Grunt to Webpack

Steps to migrate Grunt to Webpack:

Changes in every module:

• create a js file and import there all of the files that should be included in the build (js, css and external dependencies, without tests)

Changes in dev-ui:

• add grunt-webpack, webpack and its modules to package.json devDependencies

• create webpack config

• add webpack config and grunt-webpack task to Grunt config (it's described in )

• add a task to create a single entry point for webpack, a js file that imports entry points (the js file with imports created in each module) form all of the modules

• remove custom tasks created to bundle css, js and html files (this will be handled by webpack loaders)

• rewrite build tasks to use webpack instead of the custom tasks

Run failed tests:

Clone dev-ui → rm node_modules → uncomment -noTest → build dev-ui

Clone ui-components → rm node_modules → run ui-components (local version of node should be v14)