set default time zone and remove success message

app/Livewire/Server/Form.php

@@ -78,6 +78,11 @@ class Form extends Component
         $this->timezones = collect(timezone_identifiers_list())->sort()->values()->toArray();
         $this->wildcard_domain = $this->server->settings->wildcard_domain;
         $this->cleanup_after_percentage = $this->server->settings->cleanup_after_percentage;
+        
+        if ($this->server->settings->server_timezone === '') {
+            $defaultTimezone = config('app.timezone');
+            $this->updateServerTimezone($defaultTimezone);
+        }
     }
 
     public function serverInstalled()
@@ -267,11 +272,10 @@ class Form extends Component
             $this->server->settings->server_timezone = $value;
             $this->server->settings->save();
 
-            $this->dispatch('success', "Timezone successfully changed to {$value}.");
             return true;
         } catch (\Exception $e) {
             $this->dispatch('error', $e->getMessage());
             return false;
         }
     }
-}
+}