Update design of the PermissionsIntroPage intro page (and TasksActivity) so that it uses M3.
[!Note]
BasicTopAppBar still has to be migrated to M3. May be good to migrate it together with #758 since it basically has the same considerations as CardWithImage.
[!Note]
Depends on #758 since that PR migrated CardWithImage, which in itself includes a dependency on theme setting to M3 in intro page (#756).
Short description
Replaced all M2 usages with M3 of TasksCardContent
Checklist
[x] The PR has a proper title, description and label.
(See https://github.com/bitfireAT/davx5-ose/issues/691)
Purpose
Update design of the
PermissionsIntroPage
intro page (andTasksActivity
) so that it uses M3.Short description
TasksCardContent
Checklist
Dependencies
Depends on #758