Adopter Foster Dashboard: update landing page

[kasugaijin]

Please update the view at /adopter_fosterer/dashboard per the design below

Design assets can be obtained at: https://www.figma.com/design/0jVgYASUJy0KiX3BVc3dFM/Tasks?node-id=1669-976&t=VTEQx7LaODp1GSzu-1

In this case, we don't need to add a header with breadcrumbs. Please make sure the header is the same size as what we use for /adopter_fosterer/donations