feat: Implement getApp graphQL query

packages/backend/src/models/app.ts

@@ -8,6 +8,11 @@ class App {
     if(!name) return this.list;
     return this.list.filter((app) => app.includes(name.toLowerCase()));
   }
+
+  static findOneByName(name: string): object {
+    const rawAppData = fs.readFileSync(this.folderPath + `/${name}/info.json`, 'utf-8');
+    return JSON.parse(rawAppData);
+  }
 }
 
 export default App;