docs: add Imk&Cc's homepage to showcase.md (#595)

Odaimoko

2023-11-28 660aae62e09ea1f5ec957149b78bfd01a85bd79f

 quartz/components/styles/popover.scss

@@ -43,7 +43,9 @@

  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;

  @media all and (max-width: $mobileBreakpoint) {
    display: none !important;