fix: add disposable to elementDisposables instead of templateDisposables in renderElement function in SettingEnumRenderer

[SimonSiefke]

Helps with #216649

In SettingEnumRenderer, the renderElement function calls the renderValue function, whichs adds disposables to the template disposables instead of the element disposables.

It seems the disposables in renderValue should always be added to elementDisposables:

function name	disposables
renderTemplate	template disposables
renderElement	element disposables
renderValue	element disposables