[bug] Playwright fixes (#9933)

* Fixes for playwright testing

- Ensure cookies are completely cleaned  between sessions
- Fix base URL based on vite command
- Fix samesite cookie mode
- Prevent /static/ files being served by web server on :8000

* Remove gunicorn option

* Readjust base URL

* Simplify doCachedLogin

* Fix logic func

* Revert webserver cmd

* Set base URL in playwrightconfig file

* Fix URL checks

* Fix URL definitions

* adjust playwright base URL

* Tweak for URL helper

* Further login tweaks

* Tweak test

* wait for API before starting tests

* Handle error

* Adjust login functions

* Don't use gunicorn

- But still use the webserver to serve static files in CI

* Enhanced login functions

* Tweak login tests

* Fix broken test

* Flipped the flippies

src/frontend/tests/settings.ts

@@ -14,7 +14,7 @@ export const setSettingState = async ({
   setting: string;
   value: any;
 }) => {
-  const url = `${apiUrl}/settings/global/${setting}/`;
+  const url = new URL(`settings/global/${setting}/`, apiUrl).toString();
 
   const response = await request.patch(url, {
     data: {
@@ -38,7 +38,7 @@ export const setPluginState = async ({
   plugin: string;
   state: boolean;
 }) => {
-  const url = `${apiUrl}/plugins/${plugin}/activate/`;
+  const url = new URL(`plugins/${plugin}/activate/`, apiUrl).toString();
 
   const response = await request.patch(url, {
     data: {