feat(server): implement server patch check notifications

- Added a new job, ServerPatchCheckJob, to handle server patch checks and notifications.
- Introduced a new notification class, ServerPatchCheck, for sending updates via email, Discord, Slack, Pushover, and Telegram.
- Updated notification settings models to include server patch notification options for email, Discord, Slack, Pushover, and Telegram.
- Created a migration to add server patch notification fields to the respective settings tables.
- Enhanced the UI to allow users to enable/disable server patch notifications across different channels.

app/Models/DiscordNotificationSettings.php

@@ -28,6 +28,7 @@ class DiscordNotificationSettings extends Model
         'server_disk_usage_discord_notifications',
         'server_reachable_discord_notifications',
         'server_unreachable_discord_notifications',
+        'server_patch_discord_notifications',
         'discord_ping_enabled',
     ];
 
@@ -46,6 +47,7 @@ class DiscordNotificationSettings extends Model
         'server_disk_usage_discord_notifications' => 'boolean',
         'server_reachable_discord_notifications' => 'boolean',
         'server_unreachable_discord_notifications' => 'boolean',
+        'server_patch_discord_notifications' => 'boolean',
         'discord_ping_enabled' => 'boolean',
     ];