fixed Bug：After deleting a board, using the undo feature would redire…#4868

V1nnncJune wants to merge 3 commits intomattermost-community:mainmattermost-community/focalboard:mainfrom

V1nnncJune:fix-board_deletion_not_found_errorV1nnncJune/focalboard:fix-board_deletion_not_found_errorCopy head branch name to clipboard