Decrease window manage verbosity

Docker/ephemeral-x.sh

@@ -156,7 +156,7 @@ if [ ! -z "$WINMGR" -a "$WINMGR" != "none" ] ; then
     exit 1
   fi
   WINMGRNAME=${WINMGR%% *}
-  $WINMGR &
+  $WINMGR  > /dev/null 2> /dev/null &
   winmgrpid=$!
 
   # Wait for the window manager to startup

index.js

@@ -1,4 +1,5 @@
 var serve = require("koa-static");
+const { v4: uuid } = require("uuid");
 const Koa = require("koa");
 const Router = require("@koa/router");
 const mount = require("koa-mount");