fix: P8a blocks Theme Builder layouts without Divi's theme_builder role (L6)

et_header_layout, et_body_layout, et_footer_layout and et_template showing a
global entry now block a confirmed edit unless et_pb_is_allowed('theme_builder'),
like Divi's own check for TB layouts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/Integrations/Divi/Library/LibraryIntegration.php

@@ -54,7 +54,12 @@ final class LibraryIntegration implements Integration
     public function abilities(): array
     {
         return [
-            new LibraryListAbility($this->access, $this->loader, $this->design, new GlobalUsages()),
+            new LibraryListAbility(
+                $this->access,
+                $this->loader,
+                $this->design,
+                new GlobalUsages(null, $this->access->roles())
+            ),
             new LibrarySaveAbility(
                 $this->access,
                 $this->loader,