FEATURE: add form for setting default permissions and fix few bugs

app/Models/Content/ContentHistory.php

@@ -2,6 +2,7 @@
 
 namespace App\Models\Content;
 
+use App\Models\User;
 use Illuminate\Database\Eloquent\Model;
 
 /**
@@ -22,4 +23,9 @@ class ContentHistory extends Model
         'old_value'
     ];
     protected $guarded = [];
+
+    public function author()
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
 }