test: fix the P9/P14 backup wording of every VisibleEdits caller (ruling Q17 M3)

VisibleEditsTest asserts the exact refusal messages (no unfiltered_html,
trash disabled) and the keepingBackup() hints for rolled-back and partial
failures with each caller's label and entry. The callers' own tests drive
GlobalEdits, ThemeBuilderEdits (through DiviWriter) and make-global with
revisions off and assert the same sentences.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

tests/Unit/Integrations/Divi/Pages/DiviWriterThemeBuilderTest.php

@@ -146,8 +146,10 @@ final class DiviWriterThemeBuilderTest extends TestCase
 
         self::assertSame(1, $backups);
         self::assertSame(1071, $error->get_error_data()['backup_id']);
-        self::assertStringContainsString('Sicherung 1071 liegt im Papierkorb', $error->get_error_data()['hint']);
-        self::assertStringContainsString('Theme-Builder-Layouts', $error->get_error_data()['hint']);
+        self::assertSame(
+            VisibleEditsTest::keptRolledBack(1071, 'des Theme-Builder-Layouts'),
+            $error->get_error_data()['hint']
+        );
         self::assertSame([], $this->saved);
     }