fix: resolve SonarCloud code smells in TypeScript conversions

- Replace deprecated e.returnValue with e.preventDefault() in beforeunload handler
- Convert WebWorker class to factory function to fix constructor return issue
- Export both createWebWorker and WebWorker for backward compatibility
- Address 'Unexpected class with only a constructor' code smell
- Address 'Unexpected return statement in constructor' code smell

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

src/components/AppStart/unload/addBeforeUnloadEventListener.ts

@@ -11,7 +11,7 @@ export function addBeforeUnloadEventListener(store: PlainReduxStore) {
 
         if (store.getState().offline.outbox.length > 0) {
             const msg = 'Unsaved events!';
-            e.returnValue = msg;
+            e.preventDefault();
             return msg;
         }
         return undefined;

src/core_modules/capture-core-utils/WebWorker/index.ts

@@ -1,7 +1,7 @@
-export class WebWorker {
-    constructor(worker: string) {
-        const code = worker.toString();
-        const blob = new Blob([`(${code})()`]);
-        return new Worker(URL.createObjectURL(blob));
-    }
+export function createWebWorker(worker: string): Worker {
+    const code = worker.toString();
+    const blob = new Blob([`(${code})()`]);
+    return new Worker(URL.createObjectURL(blob));
 }
+
+export const WebWorker = createWebWorker;

src/core_modules/capture-core-utils/index.ts

@@ -3,6 +3,6 @@ export { pipe } from './misc/pipe';
 export { buildUrl } from './misc';
 export { makeCancelable as makeCancelablePromise } from './cancelablePromise';
 export { chunk } from './chunk';
-export { WebWorker } from './WebWorker';
+export { createWebWorker, WebWorker } from './WebWorker';
 export { useFeature, featureAvailable, FEATURES } from './featuresSupport';
 export type { CaptureClientEvent } from './types/global';