Add support for configuration profiles.

tests/config/profiles/scrubbing.test.ts

@@ -0,0 +1,13 @@
+import { expect, it } from 'vitest';
+import { SCRUBBING_PROFILE } from '../../../src/config/profiles/scrubbing';
+
+it('scrubbing profile', () => {
+  expect(SCRUBBING_PROFILE).toEqual({
+    'live.controls.timeline.mode': 'below',
+    'live.controls.timeline.style': 'ribbon',
+    'live.controls.timeline.pan_mode': 'seek',
+    'media_viewer.controls.timeline.mode': 'below',
+    'media_viewer.controls.timeline.style': 'ribbon',
+    'media_viewer.controls.timeline.pan_mode': 'seek',
+  });
+});