Make content_owner_id nullable in reports table

backend/supabase/reports.sql

@@ -1,22 +1,24 @@
 create table if not exists
-  reports (
-    content_id text not null,
-    content_owner_id text not null,
-    content_type text not null,
-    created_time timestamp with time zone default now(),
-    description text,
-    id text default uuid_generate_v4 () not null,
-    parent_id text,
-    parent_type text,
-    user_id text
-  );
+    reports
+(
+    content_id       text                                                not null,
+    content_owner_id text,
+    content_type     text                                                not null,
+    created_time     timestamp with time zone default now(),
+    description      text,
+    id               text                     default uuid_generate_v4() not null,
+    parent_id        text,
+    parent_type      text,
+    user_id          text
+);
 
 -- Foreign Keys
 alter table reports
-add constraint reports_content_owner_id_fkey foreign key (content_owner_id) references users (id) on delete set null;
+    add constraint reports_content_owner_id_fkey foreign key (content_owner_id) references users (id) on delete set null;
 
 alter table reports
-add constraint reports_user_id_fkey foreign key (user_id) references users (id) on delete set null;
+    add constraint reports_user_id_fkey foreign key (user_id) references users (id) on delete set null;
 
 -- Row Level Security
-alter table reports enable row level security;
+alter table reports
+    enable row level security;