Description labels for container elements

All container elements in https://github.com/benjaminkott/bootstrap_package/blob/master/Configuration/TCA/Overrides/600_ext_container.php get created without a description locallang label. So then there is no way (i know of) for integrators to create descriptions in the new content element wizard for these elements to make them more descriptive for editors.
If you could create these containers with a description locallang label, even if it that label is empty, that would be great. So we could provide a description for those elements by a locallang override for example. Other ideas are also welcome.

Start by inspecting Configuration/TCA/Overrides/600_ext_container.php, which defines the container elements mentioned in the issue. Trace how their locallang labels are declared, then verify that each container has a description label available for integrator overrides, including when the default label is empty.

Written by the indexing model from the issue text.