Add Support For Configurable Property Name & Settings

[Nicholas-Westby]

It seems like "umbracoNaviHide" is hard coded:

NestingContently/src/NestingContently.Umbraco/Backoffice/app/Backoffice/button.component.ts

Line 49 in 2adcf31

if (prop.alias === 'umbracoNaviHide') {

Our projects use "isVisible" and this is in the settings for the block list item rather than in the main set of properties for that item (i.e., the "Settings model" rather than the "Content model"):

It would be handy if both of these possibilities were configurable (either via json config or startup code).

[Nicholas-Westby]

Come to think of it, I suppose the boolean behavior would also have to be inverted since this is an "is visible" rather than an "is hidden" situation.

Aside: we use an inverted bool for this (the bool data type with true/enabled/toggled as the default state).