light/dark mode switch improvements and bugfix in search index (#29)

bb1950328

27.33.2021 a03f248319a982926788c5a72356eec408dc66fd

 assets/sass/_components.sass

@@ -271,4 +271,13 @@
      transform: scale(1.67)
      transform-origin: 50% 50%
      transition: transform 0.5s cubic-bezier(.19,1,.22,1)
      will-change: transform
      will-change: transform

  &_icon
    height: 1rem
    width: 1rem
    margin: 0
    z-index: 4
    position: absolute
    transform: translateY(-50%)
    transition: transform 0.5s cubic-bezier(.19,1,.22,1)