Define item as task or note

[SimonLab]

ref: dwyl/app#266 (comment)

an Item can be either a task or a note at the moment. This is represented on the api side with the field task which can be true/false.

• Create the elm structure (udpate encoder decoder for the capture) and make sure the change are applied with the API
• Update the UI to allow user to toggle between task and note

[SimonLab]

I'm currently using the radioRow function to allow the user to select the type for the item and to test the API save the changes.

[nelsonic]

@SimonLab I don't know if you have seen https://github.com/dwyl/app-mvp-phoenix#schema
But the whole idea of having item_tags is so that we can have an unlimited variety of categorisation for our items. So an item can be a task or note (or anything else) without having to add additional fields/columns to the API.