added support for douyin

- full support for douyin (no watermark)
- fixed up some tiktok stuff in the module

src/modules/services/_config.json

@@ -66,7 +66,11 @@
         "enabled": false
     },
     "tiktok": {
-        "patterns": [":user/:type/:postId", ":id"],
+        "patterns": [":user/video/:postId", ":id"],
+        "enabled": true
+    },
+    "douyin": {
+        "patterns": ["video/:postId", ":id"],
         "enabled": true
     }
 }