[CI] Playwright improvements (#9395)

* Allow port 4173 (vite preview)

* Change 'base' attr based on vite command

* Allow api_host to be specified separately

* Harden API host functionality

* Adjust server selections

* Cleanup vite.config.ts

* Adjust playwright configuration

- Allow to run in "production" mode
- Builds the code first
- Runs only the backend web server
- Not suitable for coverage

* Tweak github actions

* Tweak QC file

* Reduce number of steps

* Tweak CI file

* Fix typo

* Ensure translation before build

* Fix hard-coded test

* Test tweaks

* uncomment

* Revert some changes

* Run with gunicorn, single worker

* Reduce log output in DEBUG mode

* Update deps

* Add global-setup func

* Fix for .gitignore file

* Cached auth state

* Tweak login func

* Updated tests

* Enable parallel workers again

* Simplify config

* Try with a single worker again

* Single retry mode

* Run auth setup first

- Prevent issues with parallel test doing login

* Improve test setup process

* Tweaks

* Bump to 3 workers

* Tweak playwright settings

* Revert change

* Revert change

src/frontend/tests/helpers.ts

@@ -86,8 +86,7 @@ export const navigate = async (page, url: string) => {
     url = `${baseUrl}/${url}`;
   }
 
-  await page.goto(url, { waitUntil: 'domcontentloaded' });
-  await page.waitForLoadState('networkidle');
+  await page.goto(url);
 };
 
 /**
@@ -98,7 +97,6 @@ export const loadTab = async (page, tabName) => {
     .getByLabel(/panel-tabs-/)
     .getByRole('tab', { name: tabName })
     .click();
-  await page.waitForLoadState('networkidle');
 };
 
 // Activate "table" view in certain contexts
@@ -121,5 +119,4 @@ export const globalSearch = async (page, query) => {
   await page.getByLabel('global-search-input').clear();
   await page.getByPlaceholder('Enter search text').fill(query);
   await page.waitForTimeout(300);
-  await page.waitForLoadState('networkidle');
 };