added authenticatable model class in config file

Author: gigabyte_tech

config/filament-comments.php

@@ -48,4 +48,9 @@
      * The attribute used to display the user's name.
      */
     'user_name_attribute' => 'name',
+
+    /*
+     * Authenticatable model class
+     */
+    'authenticatable' => \App\Models\User::class,
 ];

src/Models/FilamentComment.php

@@ -23,9 +23,9 @@ class FilamentComment extends Model
 
     public function user(): BelongsTo
     {
-        $authenticatable = app(Authenticatable::class);
+        $authenticatable = config('filament-comments.authenticatable');
 
-        return $this->belongsTo($authenticatable::class, 'user_id');
+        return $this->belongsTo($authenticatable, 'user_id');
     }
 
     public function subject(): BelongsTo