WIP notifications and other refactors (#88)

* WIP notifications and other refactors
- refactor notification channels
- send notifications on events related to the servers and sites
- delete server log files on server deletion
- add telegram notification channel
- add new icons
- cache configs and icons on installation and updates
- new navbar for dark mode and settings

* discord channel

* build assets

* pint

app/Contracts/Notification.php

@@ -2,9 +2,17 @@
 
 namespace App\Contracts;
 
+use Illuminate\Notifications\Messages\MailMessage;
+
 interface Notification
 {
-    public function subject(): string;
+    public function rawText(): string;
 
-    public function message(bool $mail = false): mixed;
+    public function toMail(object $notifiable): MailMessage;
+
+    public function toSlack(object $notifiable): string;
+
+    public function toDiscord(object $notifiable): string;
+
+    public function toTelegram(object $notifiable): string;
 }