chore: Refactor graphQL queries structure

packages/backend/src/graphql/root-query.ts

@@ -0,0 +1,13 @@
+import { GraphQLObjectType } from 'graphql';
+import getApps from './queries/get-apps';
+import getApp from './queries/get-app';
+
+const rootQuery = new GraphQLObjectType({
+  name: 'Query',
+  fields: {
+    getApps: getApps,
+    getApp: getApp
+  }
+});
+
+export default rootQuery;