Internal: Fix flaky daily test [TMZ-997]

[hein-obox]

✨ PR Description

Purpose: Fix flaky test in WordPress environment setup by removing emoji characters and pipe commands that cause encoding issues in CI/CD pipeline.

Main changes:

• Removed checkmark and cross emoji characters from test output messages to prevent character encoding failures
• Eliminated piped head -10 command from ls output to avoid broken pipe errors in test environment
• Added explicit || true to style.css header check to prevent premature script termination on failure

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