[#50302157] Replace the 'Select All | None' with a single checkbox.

Also, extract the BoundForMultiselect mixin to be used in list content details and data source
content details views.

The events for multiple selection ('selectAll' and 'selectNone') remain the same.
Avoid columns being shown on background of filter forms on datasets index.

This includes the form for visualization of the table and the derivation of a chorus view.