Add SEO controls and sitemap for compliance pages

Add search engine indexing toggle, robots.txt, and sitemap.xml
generation for compliance pages. Replace checkboxes with toggle
components in the compliance page UI and add an "Open" button
in the page header to quickly access the live compliance page.
The search engine indexing toggle is disabled when the compliance
page is inactive.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/migrations/20260324T120000Z.sql

@@ -0,0 +1,5 @@
+ALTER TABLE trust_centers
+ADD COLUMN search_engine_indexing TEXT NOT NULL DEFAULT 'NOT_INDEXABLE';
+
+ALTER TABLE trust_centers
+ALTER COLUMN search_engine_indexing DROP DEFAULT;