add service to table only have videoID

databases/_upgrade_private_3.sql

@@ -0,0 +1,10 @@
+BEGIN TRANSACTION;
+
+ALTER TABLE "sponsorTimes" ADD "service" TEXT NOT NULL default 'YouTube';
+-- UPDATE "sponsorTimes" SET "service" = "YouTube";
+
+DROP INDEX IF EXISTS "privateDB_sponsorTimes_videoID";
+
+UPDATE "config" SET value = 3 WHERE key = 'version';
+
+COMMIT;