fix(core): strip trailing slash from companionUrl for socket URL - #6391

fix(core): strip trailing slash from companionUrl for socket URL#6391

JammingBen wants to merge 3 commits into

transloadit:maintransloadit/uppy:mainfrom

JammingBen:fix/socket-host-trailing-slashJammingBen/uppy:fix/socket-host-trailing-slashCopy head branch name to clipboard