fix: make filter checks more strict (closes #1519)

Jacky Zhao

2024-10-15 b3a02909ba74fff08cd3675707d1f4d782a24e98

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export const escapeHTML = (unsafe: string) => {
  return unsafe
    .replaceAll("&", "&")
    .replaceAll("<", "&lt;")
    .replaceAll(">", "&gt;")
    .replaceAll('"', "&quot;")
    .replaceAll("'", "&#039;")
}