feat: update user and flight models and add comment and admin models

app/Models/Flight.php

@@ -146,9 +146,9 @@ class Flight extends Model
     {
         return $this->hasMany(Booking::class);
     }
-
-    public function tours()
+    public function comments()
     {
-        return $this->hasMany(Tour::class, 'file_id');
+        return $this->hasMany(Comment::class, 'flight_id');
     }
+
 }