Genealogy as a feature (#175)

Start our journey into turning GeneIT as afully featured family intranet by making genealogy a feature that can be disabled by family admins

Reviewed-on: #175

geneit_backend/migrations/2024-05-15-164434_genealogy_as_feature/down.sql

@@ -0,0 +1,3 @@
+-- Remove column to toggle genealogy
+ALTER TABLE public.families
+    DROP COLUMN enable_genealogy;