feat(config): 移除无效的弹幕配置项

从 api.json 中移除了 key 为 "aowu" 的弹幕配置项，该配置项已不再使用。
同时在 dm_aowu.json 中为相关配置补充了缺失的 "ext" 字段。

api.json

@@ -30,18 +30,6 @@
             "jar": "https://gitee.com/zj521jj/little-tiger-spot/raw/master/jar/HubanTC.jar",
             "api": "csp_Huban"
         },
-        {
-            "name": "弹幕｜嗷呜",
-            "key": "aowu",
-            "type": 3,
-            "jar": "./dmlib/custom_spider.jar",
-            "api": "csp_GoConfig",
-            "searchable": 0,
-            "filterable": 0,
-            "quickSearch": 0,
-            "changeable": 0,
-            "ext":""
-        },
         {
             "key": "配置中心",
             "name": "配置｜中心",

dm_aowu.json

@@ -20,7 +20,8 @@
             "searchable": 0,
             "filterable": 0,
             "quickSearch": 0,
-            "changeable": 0
+            "changeable": 0,
+            "ext": ""
         }
     ]
 }