complete story 8.1 with qa tests

app/Mail/BaseMailable.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Address;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+abstract class BaseMailable extends Mailable implements ShouldQueue
+{
+    use Queueable, SerializesModels;
+
+    public function envelope(): Envelope
+    {
+        return new Envelope(
+            from: new Address(
+                config('mail.from.address'),
+                $this->getFromName()
+            ),
+        );
+    }
+
+    public function getFromName(): string
+    {
+        $locale = $this->locale ?? app()->getLocale();
+
+        return $locale === 'ar' ? 'مكتب ليبرا للمحاماة' : 'Libra Law Firm';
+    }
+}