message: fix header and sortable colors
diff: .strength-meter::after, .strength-meter::before {
  border-color: @dark-mode-background-4 !important;
  }
  - }
  - .uk-card-default {
  .uk-card-header {
  border-color: @dark-mode-background-1;
  }
  border-color: @dark-mode-text-4;
  }
  + .uk-form-label {
  + color: @dark-mode-text-3;
  + }
  +
  + // General (Headers)
  h1, .uk-h1, h2, .uk-h2, h3, .uk-h3, h4, .uk-h4, h5, .uk-h5, h6, .uk-h6, .uk-heading-small, .uk-heading-medium, .uk-heading-large, .uk-heading-xlarge, .uk-heading-2xlarge {
  color: #DDD;
  }
  - .uk-form-label {
  - color: @dark-mode-text-3;
  + .uk-card-default {
  + h1, .uk-h1, h2, .uk-h2, h3, .uk-h3, h4, .uk-h4, h5, .uk-h5, h6, .uk-h6, .uk-heading-small, .uk-heading-medium, .uk-heading-large, .uk-heading-xlarge, .uk-heading-2xlarge {
  + color: @dark-mode-text-6;
  + }
  }
  // General (Lines)
  color: @dark-mode-text-4;
  }
  + .uk-sortable-drag {
  + background: @dark-mode-background-5;
  + }
  +
  // General (Nav)
  .uk-nav-default .uk-nav-header {
  color: @dark-mode-text-3;
  