fix docs for using custom components compositionally (#2044)

Garklein

2025-07-08 82c53a1c80069734da273883885d764ada0c1dd2

 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;