Change Details

=====Acceptance criteria:===== The participants tab in Special:EventDetails should have an information icon and tooltip text. |**build**|**comp**|**comp** |{F37656015}|{F37655991}|{F37655990} [[ https://www.figma.com/proto/lJUO73TtMpoyn30zm1qFq7/Campaigns-registration-V2?node-id=1779-51887&scaling=min-zoom&page-id=627%3A28978&starting-point-node-id=1779%3A50219&show-proto-sidebar=1 | Design file ]]

=====Acceptance criteria:===== The participants tab in Special:EventDetails should have an information icon and tooltip text. |**build**|**comp**|**comp** |{F37656015}|{F37655991}|{F37655990} [[ https://www.figma.com/proto/lJUO73TtMpoyn30zm1qFq7/Campaigns-registration-V2?node-id=1779-51887&scaling=min-zoom&page-id=627%3A28978&starting-point-node-id=1779%3A50219&show-proto-sidebar=1 | Design file ]] Follow up ticket from T318165