Visibility to Timeline Entries from Calendar

We have CSMs that like to log their meeting entries into timeline from the calendar widget, but there are a couple of things that would make the usage easier.

1. When an entry is made from the Calendar widget, show an indication that there is already an entry for that calendar event.
2. Enable editing a timeline entry directly from the calendar.

These would help reduce duplication of the timeline entries and simplify finding the meetings notes for a specific meeting when there are changes that need to be made.