v5.7.1
dark mode part 2 (#18806)
"Browse channels" UI fine tuning (#24057)
add emoji modal (#23395)
remove darkMode feature flag. make desktop startup always correct (#20262)
Styles: unify subnav-bar widths across tabs (#23865)
update lint (#19072)
platform styles: add isphone, reorder precedence (#22425)
remove proxy on styleSheetCreate objects (#20780)