jsonConfig: external loadable code

[oweitman]

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https://github.com/ioBroker/ioBroker.admin/blob/bbcc2fb28ad21f2550a0bb558005d6c2a631aebc/src-rx/src/components/JsonConfigComponent/ConfigCustom.jsx#L97

do we really want this. isnt this a security flaw?

all components that should be used in the admin dialog should be allready installed in the adapter

[GermanBluefox]

Interesting finding. I think, yes, it must be removed

[Feuer-sturm]

@oweitman Can you please check with current admin version if this issue is fixed?