fix(rss): add cdata to escape html content for rss feed (#2046)

Abhi

2025-07-14 059848f8b0ae36e3a8fb4bd6fd3cda8531e5dce7

 quartz/components/styles/search.scss

@@ -8,7 +8,7 @@
  }

  & > .search-button {
    background-color: var(--lightgray);
    background-color: color-mix(in srgb, var(--lightgray) 60%, var(--light));
    border: none;
    border-radius: 4px;
    font-family: inherit;