Refactor Slack message formatting for new bookings.

Updated the message format to simplify content, translate to Danish, and remove unnecessary fields. This improves clarity and aligns with localized conventions.

services/nginx/app/classes/slack.php

@@ -90,20 +90,15 @@ class slack implements notification_i
         // Get the customer name
         $customer_name = (new users_o())->getCustomerName($customer_number);
         // Format the message
-        return "*New booking created* ( ID: " . $id . " )\n"
-            . "Customer: $customer_name\n"
-            . "Customer number: $customer_number\n"
-            . "Wash type: $wash_type\n"
-            . "Contact email: $contact_email\n"
-            . "Reference number: $reference_number\n"
+        return "*Ny booking oprettet* ( ID: " . $id . " )\n"
+            . "Kunde: $customer_name ($customer_number)\n"
+            . "Type: $wash_type\n"
+            . "Reference nummer: $reference_number\n"
             . "RegNr Traekker: $regNrTraekker\n"
             . "RegNr Trailer: $regNrTrailer\n"
-            . "Wash certificate email: $washCertificateEmail\n"
-            . "Date: $date\n"
-            . "Department: $department_name\n"
-            . "Pickup: $pickup_bool\n"
-            . "Notes: $notes\n"
-            . "Status: $status";
+            . "Dato: $date\n"
+            . "Hentning: $pickup_bool\n"
+            . "Noter: $notes";
     }
 
     public function format_unfulfilled_booking($id, $customer_number, string $wash_type, string $contact_email, string $reference_number, string $regNrTraekker, string $regNrTrailer, string $washCertificateEmail, string $date, int $department, $pickup_bool, string $notes, string $washCertificateStatus, string $washCertificateUrl, string $status): string