ui: use seperate cache key in homework

packages/ui-default/components/scratchpad/reducers/editor.ts

@@ -1,5 +1,5 @@
 let cacheKey = `${UserContext._id}/${UiContext.pdoc.domainId}/${UiContext.pdoc.docId}`;
-if (UiContext.tdoc?._id && UiContext.tdoc.rule !== 'homework') cacheKey += `@${UiContext.tdoc._id}`;
+if (UiContext.tdoc?._id) cacheKey += `@${UiContext.tdoc._id}`;
 
 // TODO switch to indexeddb
 export default function reducer(state = {

packages/ui-default/pages/user_verify.page.ts

@@ -3,9 +3,7 @@ import $ from 'jquery';
 import { ActionDialog } from 'vj/components/dialog';
 import Notification from 'vj/components/notification';
 import { AutoloadPage } from 'vj/misc/Page';
-import {
-  api, gql, i18n, request, tpl,
-} from 'vj/utils';
+import { i18n, request, tpl } from 'vj/utils';
 
 async function verifywebauthn($form) {
   if (!window.isSecureContext || !('credentials' in navigator)) {