add disposable emails blacklist (#502)

* add disposable emails blacklist

* Update src/utils/email.ts

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* reverse condition

---------

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

Author: andreip136

next.config.mjs

@@ -20,6 +20,7 @@ const nextConfig = {
       './node_modules/async-function/**/*',
       './node_modules/async-generator-function/**/*',
       './node_modules/generator-function/**/*',
+      './public/disposable-email-blacklist.conf',
     ],
   },
   turbopack: {