test(e2e): add PWA source details coverage

Add PWA web-e2e source details coverage and shared web-e2e helpers.

apps/web-e2e/src/self-hosted.e2e.ts

@@ -1,4 +1,5 @@
-import type { Locator, Page } from '@playwright/test';
+import type { Page } from '@playwright/test';
+import { setInputValue } from './e2e-helpers';
 import { expect, test } from './fixtures';
 
 const WEB_BACKEND_URL = 'http://localhost:3333';
@@ -18,21 +19,6 @@ async function installRuntimeConfig(page: Page): Promise<void> {
     });
 }
 
-async function setInputValue(input: Locator, value: string): Promise<void> {
-    await input.fill('');
-    await input.fill(value);
-
-    if ((await input.inputValue()) === value) {
-        return;
-    }
-
-    await input.click();
-    await input.press('ControlOrMeta+A');
-    await input.press('Backspace');
-    await input.type(value);
-    await expect(input).toHaveValue(value);
-}
-
 async function addXtreamPortal(page: Page): Promise<void> {
     await page.getByRole('button', { name: 'Add playlist' }).click();
     const dialog = page.locator('mat-dialog-container');