Show the popup menu by default or add options in the backend to choose the display

Problem/Motivation

While working on a site for a client where we heavily used paragraphs and the layout_paragraphs as the default widget, i noticed that for some of the paragraphs who had a the "preview" display set incorrectly, or something that didnt output any content in the preview, this would lead to a widget that got 0 height and it would be hard to activate the popup menu.

Lets say a nested paragraph for bootstrap cards, that if you filled only the link field for that paragraph, the preview would result at 0 css height.

I proceeded to add some minimal styling to achieve the following:

However while tinkering more with the css, thinking how i could make it easier for my end clients to manage the paragraphs section, i thought that the following setup would be better and more intuitive:

By altering the opacity setting for that contextual menu for each paragraph, this easier to use. Further more we could choose to do the same for the [+] elements that allow us to add another child below/above the current one.

Proposed resolution

If this would seem a good idea i could start working on a css patch, or we could also introduce this functionality to the user by letting them toggle these settings in the backend and have them choose what behaviour to apply to LB.