Before this commit, the new drag & drop tour helpers could only be used on the white-listed "o_record_draggable" class name. This meant that only the new kanbans could use the "drag_and_drop_native" tour helper. This commit allows any element using the "o_draggable" class name to use that helper, and renames occurences of "o_record_draggable" to "o_draggable". Part-of: odoo/odoo#112756