Add drop shadow as style for more components

For some components (jsonExplorer & listView), there is a drop shadow enabled by default. For listViews, this shadow can be disabled, while for jsonExplorer this is not the case. To make apps look even nicer & consistent without having to add custom CSS, it would be amazing to have the option to add drop shadow to more components, esp. containers, tables and buttons!

Hey @nikita_from_bunch,

Thanks so much for reaching out!

Our team is actively working on improving our product, so this was super helpful feedback! I'll make sure to submit your feature request.