Fix inconsistent spacing in bin/setup

Signed-off-by: David Mehren <git@herrmehren.de>

bin/setup

@@ -10,8 +10,7 @@ if [ -d .git ]; then
   cd "$(git rev-parse --show-toplevel)"
 fi
 
-if ! type yarn > /dev/null
-then
+if ! type yarn > /dev/null; then
   cat << EOF
 FATAL: Yarn could not be found.
 
@@ -63,7 +62,6 @@ Read more info at https://github.com/hedgedoc/hedgedoc#configuration-files
 
 * config.json           -- HedgeDoc config
 * .sequelizerc          -- db config
-
 EOF
 
 # change directory back