Static Asset Management (#9292)

* Caddyfile: Redirect asset requests

- Ensure the static asset files are served by the proxy
- Reduce gunicorn / python load
- Significant server performance increase

* Allow CORS requests to 'assets' path

* Update static assets path for vite build

* Remove RedirectAssetView

* Specify relative base path

Ref: https://vite.dev/guide/build.html#relative-base

* Revert settings.py

* Revert caddyfile

* Remove defunct unit test

* Add timeout to test

src/frontend/tests/pui_plugins.spec.ts

@@ -38,6 +38,8 @@ test('Plugins - Settings', async ({ page, request }) => {
     .fill(originalValue == '999' ? '1000' : '999');
   await page.getByRole('button', { name: 'Submit' }).click();
 
+  await page.waitForTimeout(500);
+
   // Change it back
   await page.getByLabel('edit-setting-NUMERICAL_SETTING').click();
   await page.getByLabel('number-field-value').fill(originalValue);