Add member avatar privacy

PluralKit.Core/Database/Migrations/8.sql

@@ -2,6 +2,7 @@
 -- Create new columns --
 alter table members add column description_privacy integer check (description_privacy in (1, 2)) not null default 1;
 alter table members add column name_privacy integer check (name_privacy in (1, 2)) not null default 1;
+alter table members add column avatar_privacy integer check (avatar_privacy in (1, 2)) not null default 1;
 alter table members add column birthday_privacy integer check (birthday_privacy in (1, 2)) not null default 1;
 alter table members add column pronoun_privacy integer check (pronoun_privacy in (1, 2)) not null default 1;
 alter table members add column metadata_privacy integer check (metadata_privacy in (1, 2)) not null default 1;
@@ -10,6 +11,7 @@ alter table members add column metadata_privacy integer check (metadata_privacy
 -- Transfer existing settings --
 update members set description_privacy = member_privacy;
 update members set name_privacy = member_privacy;
+update members set avatar_privacy = member_privacy;
 update members set birthday_privacy = member_privacy;
 update members set pronoun_privacy = member_privacy;
 update members set metadata_privacy = member_privacy;