Consumer Flow Creating Issues

- [ ] TD is not accepted if the action does not have an input. Pasting http://plugfest.thingweb.io:8083/testthing gives ` tdAction.input is undefined`. First, we should be more flexible since not all actions have an input. Second, the error should be pointing to the action if we want to show the error.
- [ ] Same for properties. I get DATATYPES[tdProperty.type] is undefined when there is no type. This has no type: http://plugfest.thingweb.io:8083/counter for countAsImage
- [ ] It would be better to add an `invoke` button to actions and a message saying "action invoked". Enter gives feedback if the action works as intended but if the action does not work, I cannot be sure if I managed to invoke it in the first place. Something similar would be good for properties and events as well, i.e. "property X read" etc.
- [ ] Not sure if this is from the plugin or from flowfuse, but when I have two UIs deployed, pressing on "Open Dashboard" on the second thing's flow brings me to the first thing's UI.

Otherwise, it works

Inizia riproducendo il flusso del consumer con le Thing URLs nell’issue, incluse le azioni senza input e le proprietà senza tipi. Verifica il comportamento di deployed-dashboard con due UIs e determina se rientra in questo plugin o in FlowFuse. Il lavoro è concluso quando tutti e quattro i comportamenti segnalati hanno un responsabile identificato e correzioni verificate o limitazioni documentate.

Scritto dal modello di indicizzazione a partire dal testo della issue.