Add template-lint to your packages.

1. Install these packages:

   pnpm add -D @gossi/config-template-lint ember-template-lint

2. Create a .template-lintrc.js file with these contents:

   'use strict';
   
   module.exports = require('@gossi/config-template-lint');

3. Add scripts to execute linting

   {
     "scripts": {
       "lint:hbs": "ember-template-lint . --no-error-on-unmatched-pattern",
       "lint:hbs:fix": "ember-template-lint . --fix --no-error-on-unmatched-pattern"
     }
   }