fix(profile): handle missing Sanctum class in token visibility logic

Ensure `getShouldShowSanctumTokens` correctly disables token visibility when Sanctum is not installed.

Author: jeffersongoncalves

src/FilamentEditProfilePlugin.php

@@ -248,6 +248,10 @@ public function getShouldShowBrowserSessionsForm(): bool
 
     public function getShouldShowSanctumTokens(): bool
     {
+        if (! class_exists('Laravel\Sanctum\Sanctum')) {
+            $this->sanctumTokens = false;
+        }
+
         return $this->evaluate($this->sanctumTokens);
     }