merge: Allow for sending announcement mails with List-Unsubscribe: (!1164)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/1164

Closes #854

Approved-by: dakkar <dakkar@thenautilus.net>
Approved-by: Hazelnoot <acomputerdog@gmail.com>

packages/backend/src/models/UserProfile.ts

@@ -223,6 +223,11 @@ export class MiUserProfile {
 	})
 	public receiveAnnouncementEmail: boolean;
 
+	@Column('text', {
+		nullable: true,
+	})
+	public oneClickUnsubscribeToken: string | null;
+
 	@Column({
 		...id(),
 		nullable: true,