🛂(frontend) right pad editor

Manage the right on the pad editor.
If a use cannot edit a pad, the pad editor will
be read-only. It will not save automatically.
A message will be displayed to the user.

src/frontend/packages/eslint-config-impress/playwright.js

@@ -28,6 +28,7 @@ module.exports = {
       rules: {
         '@typescript-eslint/no-unsafe-member-access': 'off',
         '@typescript-eslint/no-unsafe-assignment': 'off',
+        '@typescript-eslint/no-non-null-assertion': 'off',
       },
     },
   ],