Fix tsconfig path lookup for IntelliJ (#3132)

IntelliJ's ESLint plugin suffers from a weird bug - it tries to resolve relative paths from the file that it is reading, even if the path is inherited from a config from another file

Author: ZhangYiJiang

website/.eslintrc.js

@@ -4,7 +4,7 @@ module.exports = {
   parser: '@typescript-eslint/parser',
 
   parserOptions: {
-    project: './tsconfig.json',
+    project: __dirname + '/tsconfig.json',
   },
 
   root: true,