- Replace .form-group Boostrap helper class with .mb-3. The .form-group class was only
adding margin bottom styles, so it is an straightforward change.
- Replace .form-group references in SCSS files with .fitem now .form-group has been removed.
- There were some other .form-group occurrences in the code that were using it not for styling
but incorrectly for managing some logic. These have been also replaced with .fitem or removed.
Added two new buttons to the group page to bulk enable or disable the
selected groups messaging settings.
Supporting Javascript modules were also added to disable/enable the
buttons depending on the groups selected in the picker.
Previously group bulk actions were handled by prepending
_act in the value of the input, and then using a custom function that
accessed $_GET and $_POST to determine which was pressed.
This was refactored in favor of the more standard method of using
optional_param.
* Remove custom styles for groups since we're using default Bootstrap
styles now.
* Hidden input breaks grid layout. Moved it inside the groups column.
* Removed unnecessary 'groups' and 'members' classes. They are not being
used in JS nor CSS.
