js output must use ~ts instead of ~s

some place must to be used `~ts` instead of `~s` for unicode : )

for example:
```` erlang
render_action(Record)  ->
    TriggerPath= Record#min_length.trigger,
    ....
    wf:f("v.add(Validate.Length, { minimum: ~p, tooShortMessage: \"~s\" });", [Length, Text]).
````
The code above can't generate proper unicode string, and it must rewrite as this:
```` erlang
    wf:f("v.add(Validate.Length, { minimum: ~p, tooShortMessage: \"~ts\" });", [Length, Text]).
````