add for backend send shared link via email

app/Notifications/SharedSendViaEmail.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace App\Notifications;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Notifications\Notification;
+use Illuminate\Notifications\Messages\MailMessage;
+
+class SharedSendViaEmail extends Notification
+{
+    use Queueable;
+
+    /**
+     * Create a new notification instance.
+     *
+     * @return void
+     */
+    public function __construct($emails, $token)
+    {
+        $this->emails = $emails;
+        $this->token = $token;
+        $this->user = Auth::user();
+    }
+
+    /**
+     * Get the notification's delivery channels.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function via($notifiable)
+    {
+        return ['mail'];
+    }
+
+    /**
+     * Get the mail representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return \Illuminate\Notifications\Messages\MailMessage
+     */
+    public function toMail($notifiable)
+    {
+        $notifiable->email = $this->emails;
+        $shared_link = url(env('APP_URL') . '/shared' . '/' . $this->token );
+       
+
+        return (new MailMessage)
+            ->subject(__('vuefilemanager.reset_password_subject') . config('vuefilemanager.app_name'))
+            ->greeting(__('vuefilemanager.shared_link_email_greeting'))
+            ->line(__('vuefilemanager.shared_link_email_user', ['user' => $this->user->name, 'email' => $this->user->email]))
+            ->action(__('vuefilemanager.shared_link_email_link'), $shared_link);
+            
+    }
+
+    /**
+     * Get the array representation of the notification.
+     *
+     * @param  mixed  $notifiable
+     * @return array
+     */
+    public function toArray($notifiable)
+    {
+        return [
+            //
+        ];
+    }
+}