message: Fix onboarding page fully collapsing its height
diff: +<script lang="ts" src="./welcome"></script>
  +
  <template>
  <div class="-welcome fill-darkest">
  <!-- steepper would go here -->
  </template>
  <style lang="stylus" scoped>
  -@require '~styles/variables'
  -@require '~styles-lib/mixins'
  +@import '~styles/variables'
  +@import '~styles-lib/mixins'
  .-welcome
  change-bg('darkest')
  - position: absolute
  - z-index: $zindex-shell-top-nav
  - top: 0
  - left: 0
  - right: 0
  - bottom: 0
  - overflow-y: auto
  - overflow-x: hidden
  + min-height: 100vh
  .-controls
  margin-top: 30px
  .-skip
  theme-prop('color', 'fg-muted')
  -
  </style>
  -
  -<script lang="ts" src="./welcome"></script>
  