Discord Login (#615)

* Add files via upload

* Create linode-setup.md

* Create cloudflare-setup.md

* Update cloudflare-setup.md

* Delete 4-linode.png

* Delete 3-linode.png

* Add files via upload

* Add files via upload

* Update cloudflare-setup.md

* Update linode-setup.md

* Rename cloudflare-setup.md to cloudflare.md

* Rename linode-setup.md to linode.md

* Update mkdocs.yml

* Update cloudflare.md

* Update linode.md

* Update README.md

* Update README.md

* Update linode.md

sentence in Italian

* v1

The frontend has been completed, along with the .env variables.

However, there is an issue of infinite loading thereafter.

* Fix email and remove deprecated GitHub passport

* Update user_auth_system.md

add How to Set Up a Github Authentication

* Update .env.example

Improved the comment above the GitHub client ID and secret.

* Update user_auth_system.md

* Update package.json

* Remove unnecessary passport GitHub package

* fixed conflicts

 fixed conflicts between Berry-13:main and danny-avila:main

in api/server/index.js 45:54

* Delete e -i HEAD~2

* (WIP) Discord Login

* Fix duplicate githubLoginEnabled

* .env.example restore

* Update user_auth_system.md

Discord Login

* Fix and new Feature

1. Added Discord login to .env.example.
2. Created Google, Github, and Discord icons in client\src\components\svg.
3. Added the social login option in the .env file; it fixes the ---or---. Check Discord for more information.

* fix Login.tsx and Registration.tsx

* Update user_auth_system.md

* Update .env.example

* Added OpenID Icon

* quick discord icon fix

* discord strategy fix

* remove comment

api/server/routes/oauth.js

@@ -115,4 +115,32 @@ router.get(
   }
 );
 
+
+router.get(
+  '/discord',
+  passport.authenticate('discord', {
+    scope: ['identify', 'email'],
+    session: false
+  })
+);
+
+router.get(
+  '/discord/callback',
+  passport.authenticate('discord', {
+    failureRedirect: `${domains.client}/login`,
+    failureMessage: true,
+    session: false,
+    scope: ['identify', 'email']
+  }),
+  (req, res) => {
+    const token = req.user.generateToken();
+    res.cookie('token', token, {
+      expires: new Date(Date.now() + eval(process.env.SESSION_EXPIRY)),
+      httpOnly: false,
+      secure: isProduction
+    });
+    res.redirect(domains.client);
+  }
+);
+
 module.exports = router;