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/NotificationChannel.php

@@ -4,11 +4,13 @@
 
 interface NotificationChannel
 {
-    public function validationRules(): array;
+    public function createRules(array $input): array;
 
-    public function data(array $input): array;
+    public function createData(array $input): array;
+
+    public function data(): array;
 
     public function connect(): bool;
 
-    public function sendMessage(string $subject, string $text): void;
+    public function send(object $notifiable, Notification $notification): void;
 }