feat(usersettings): add separate setting for streaming region (#993)

* feat: add separate setting for streaming region

Currently, the "Currently Streaming On" information is based on the Discover Region setting. This PR
adds a new setting to specify which region should be used to display the streaming region.

re #890

* fix: add missing newline

* fix: rename migration function

server/interfaces/api/userSettingsInterfaces.ts

@@ -5,7 +5,8 @@ export interface UserSettingsGeneralResponse {
   email?: string;
   discordId?: string;
   locale?: string;
-  region?: string;
+  discoverRegion?: string;
+  streamingRegion?: string;
   originalLanguage?: string;
   movieQuotaLimit?: number;
   movieQuotaDays?: number;