Properly escape node types in palette

We were only escaping the first instance of any invalid dom char
and not all of the

packages/node_modules/@node-red/editor-client/src/js/ui/palette.js

@@ -150,7 +150,7 @@ RED.palette = (function() {
     }
 
     function escapeNodeType(nt) {
-        return nt.replace(" ","_").replace(".","_").replace(":","_");
+        return nt.replace(/[ .:]/g,"_");
     }
 
     function addNodeType(nt,def) {