message: fix(dicts): correct machine translator rtl source text collapse fading
diff: {
  direction: rtl !important;
  - .MachineTrans-Lines-collapse {
  + &.MachineTrans-Lines-collapse {
  &::after {
  background: linear-gradient(270deg, rgba(255,255,255,0) 50%, var(--color-background) 90%);
  }
  