avoid declaration file error explicitly

Author: zorkow

.github/workflows/test.js.yml

@@ -31,6 +31,7 @@ jobs:
         run: |
           cd node_modules
           ln -s @mathjax/src mathjax-full
+          cd ..
           
       - name: Compile MathJax
         run: |

testsuite/src/setupTex.ts

@@ -13,8 +13,10 @@ import {mathjax} from '#js/mathjax.js';
 import {OptionList} from '#js/util/Options.js';
 import {tmpJsonFile} from '#src/constants.js';
 import * as fs from 'fs';
+// @ts-ignore
 import {init} from '#source/node-main/node-main.mjs';
 import {expect} from '@jest/globals';
+// @ts-ignore
 import {source} from '#source/source.js';
 
 declare const MathJax: any;

testsuite/tsconfig.json

@@ -11,7 +11,6 @@
       "#src/*": ["./src/*"],
       "#helpers": ["./src/index.js"]
     },
-    "allowJs": true,
     "lib": ["DOM", "es2022"]
   },
   "include": ["./tests/**/*.ts", "./src/*.ts"]