workaround to disabled ligatures for current line

styles.less

// Enable all the Fira Code goodness
.editor {
  text-rendering: optimizeLegibility;
  -webkit-font-feature-settings: "liga" 1;
  font-feature-settings: "liga" 1;
}

// Disable it for current line with https://github.com/richrace/highlight-line
.editor::shadow {
  // The cursor line important to use rgba for opacity, also requires !important
  // to override any theme.
  .line.cursor-line {
    // background: rgba(255, 0, 0, 0.3) !important;
      text-rendering: optimizeSpeed;
      -webkit-font-feature-settings:  normal;
      font-feature-settings: normal;
  }
}