chore(#15): add migration to add profiles trigger

supabase/migrations/20240618233406_add_profile_trigger.sql

@@ -0,0 +1,21 @@
+alter table "public"."profiles" add column "email" text;
+
+set check_function_bodies = off;
+
+CREATE OR REPLACE FUNCTION public.handle_new_user()
+ RETURNS trigger
+ LANGUAGE plpgsql
+ SECURITY DEFINER
+AS $function$
+begin
+  insert into public.profiles (id, full_name, email)
+  values (new.id, new.raw_user_meta_data->>'full_name', new.email);
+  return new;
+end;
+$function$
+;
+
+-- trigger the function every time a user is created
+create trigger on_auth_user_created
+  after insert on auth.users
+  for each row execute procedure public.handle_new_user();