LPS-49068 add social request/activity interpreters

As of LPS-48245, Summary portlet includes its portletId in social
requests. This causes the Friends portlet request interpreter to ignore
friend requests comming from the Summary portlet. Add Friends social
interpreters to Summary portlet to make things work again.
SOS-2389 Increase to 70 charaters when truncating the notification body.
sync-engine-shared - Readd