Enhance the Top Segments Dashboard widget to link to Segment's Contacts

[isleshocky77]

Q	A
Bug fix?	N
New feature?	N
Related user documentation PR URL	None Needed
Related developer documentation PR URL	None Needed
Issues addressed (#s or URLs)	#3229
BC breaks?	N
Deprecations?	N

Description:

Currently a default dashboard is Top Lists which uses the Contact Widgets: Top Segments type. This dashboard shows the names of the top segments with a count of Contacts within the Segment.

Currently clicking on the name of the segment is a link to edit the segment while the number of contacts is just plain text. If you go to the Segments page it shows a number of contacts with it being a link to the contacts page filtered by segments.

I would argue that seeing the contacts within a segment is much more useful then being able to edit the Segment.

This is solved bychanging the number of Contacts from plain text to be a link to the Contacts page filtered by segment.

Steps to test this PR:

1. Go to the homepage and make sure you have the Top Segments widget on the Dashboard
2. Click on the Name of the Segment

• You will still be taken to the edit of page of the Segment

3. Go back to the homepage
4. Click on the Number of Contacts in the Segment

• You will now be taken to the list page of Contact being filtered by the Segment

[isleshocky77]

Rebased on staging after #3167 merge for CI testing

[escopecz]

Works as described. Good Idea! 👍

[dongilbert]

+1 works as described. Thanks!