Suggested Aggregations Color and Spacing Tweaks

In collapsed view
- modified image size, text.

In expanded view
- modified title text, help text and size,
- modified current contact photo and padding, added current contact info below contact name,
- modified suggestion photo and padding
- modified button color, and made it listen to the checkboxes

Bug: 25165935
Change-Id: I21a32c78d0bcc664693547641e0d0e8ca37a90e3