message: custom scrollbar for the sidebar
diff: @media (max-width: 639px) {
  position: absolute;
  width: 360px;
  - height: calc(100vh);
  + min-height: calc(100vh - 33px);
  + max-height: calc(100vh - 33px);
  overflow: scroll;
  }
  +
  + // Scrollbar - Gecko (Firefox)
  + scrollbar-width: thin;
  + scrollbar-color: #4E4E5F #1F1F26;
  +
  + // Scrollbar - WebKit (Chrome, Edge)
  + &::-webkit-scrollbar {
  + width: 9px;
  + }
  +
  + &::-webkit-scrollbar-track {
  + background: #1F1F26;
  + }
  +
  + &::-webkit-scrollbar-thumb {
  + background: #4E4E5F;
  + border-radius: 9px;
  + border: 2px solid #1F1F26;
  + }
  }
  .nav-container .uk-background-secondary {
  