Add oauth support

- Support azure, bitbucket, github, gitlab, google providers
- Add authentication page to settings

Co-authored-by: Suraj Kumar <srjkmr1024@gmail.com>
Co-authored-by: Michael Castanieto <mcastanieto@gmail.com>
Co-authored-by: Mike Kim <m.kim4247@gmail.com>

app/Models/OauthSetting.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Casts\Attribute;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\Crypt;
+
+class OauthSetting extends Model
+{
+    use HasFactory;
+
+    protected function clientSecret(): Attribute
+    {
+        return Attribute::make(
+            get: fn (string | null $value) => empty($value) ? null : Crypt::decryptString($value),
+            set: fn (string | null $value) => empty($value) ? null : Crypt::encryptString($value),
+        );
+    }
+}