Canvas: Rework Deployment/Gateways tab

Change-Id: I938262b9a6ba2af060531e7dcdf91ddd66721385
diff --git a/apps/canvas/back/start.sh b/apps/canvas/back/start.sh
new file mode 100755
index 0000000..23bc786
--- /dev/null
+++ b/apps/canvas/back/start.sh
@@ -0,0 +1 @@
+DODO_PORT_WEB=8080 DODO_PORT_API=8081 npm run start