Feat may set api url (#850)

* add api url settings

* may edit api setting before login

enjoy/src/types/enjoy-app.d.ts

@@ -128,6 +128,8 @@ type EnjoyAppType = {
     switchLanguage: (language: string) => Promise<void>;
     getDefaultHotkeys: () => Promise<Record<string, string> | undefined>;
     setDefaultHotkeys: (records: Record<string, string>) => Promise<void>;
+    getApiUrl: () => Promise<string>;
+    setApiUrl: (url: string) => Promise<void>;
   };
   fs: {
     ensureDir: (path: string) => Promise<boolean>;