Before this commit, the `callParticipantCard` model was used separately for both the main session and the multi-tile views (`CallSidebarView`/`CallMainView`), this commit makes so that each multi-tile view has its own list of tiles. part of task-2692836 closes odoo/odoo#96868 Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>