First draft version with Svelte for popup and additional build steps

svelte.config.js

@@ -0,0 +1,42 @@
+import adapter from '@sveltejs/adapter-static';
+import {vitePreprocess} from "@sveltejs/vite-plugin-svelte";
+import * as fs from "fs";
+
+/** @type {import('@sveltejs/kit').Config} */
+const config = {
+  kit: {
+    // Can't use default _app, since "_" is reserved symbol in Chrome
+    appDir: "assets/popup",
+    adapter: adapter({
+      strict: false
+    }),
+    version: {
+      name: Date.now().toString(36)
+    },
+    alias: {
+      "$components": "./src/components",
+      "$styles": "./src/styles",
+      "$stores": "./src/stores",
+      "$entities": "./src/lib/api/entities",
+    },
+  },
+  preprocess: [
+    vitePreprocess({
+      // SCSS is used by the project
+      style: {
+        postcss: true
+      }
+    })
+  ]
+};
+
+// Providing the version from package.json for rendering it in the UI.
+if (fs.existsSync('package.json')) {
+  const packageInformation = JSON.parse(
+    fs.readFileSync('package.json', 'utf8')
+  );
+
+  config.kit.version.name = packageInformation.version;
+}
+
+export default config;