refactor: migrate completely to urql

packages/hoppscotch-app/plugins/vue-apollo.ts

@@ -1,15 +0,0 @@
-import Vue from "vue"
-import VueApollo from "vue-apollo"
-import { apolloClient } from "~/helpers/apollo"
-
-const vueApolloProvider = new VueApollo({
-  defaultClient: apolloClient as any,
-})
-
-Vue.use(VueApollo)
-
-export default (ctx: any) => {
-  const { app } = ctx
-
-  app.apolloProvider = vueApolloProvider
-}