Manage Group search message fix

[19ATF72]

Overview

When searching for group it looks like the search was performed by the site name.
New message is more user friendly

Before

After

Steps to reproduce

1.Click "View contact record"
2.Click "Contact" → "Manage Group"
3.Try to find some non-existent group
4.Take a look at the message: "No Groups have been created for this site."

[civibot]

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[yashodha]

@19ATF77 I think we can change the verbiage to No groups match the search criteria since filter could be anything - name, creator name, etc

Also Nan looks off. The whole line and pager should go away for zero results.

[colemanw]

For some time now we have been standardizing our empty search results string to "None found." This makes it easy on translators to reuse the same string everywhere rather than have to translate dozens of slight variations ("No groups found" "No activities found" "No contacts found" etc.)

[19ATF72]

@colemanw that makes a lot of sense, changed it now.
Thanks for your time @yashodha , @colemanw .

[yashodha]

@19ATF77 thanks! Can you please squash all your commits?

[19ATF72]

Done,
Thanks

[alifrumin]

@Coleman, I tested this on the jenkins build and it looks merge ready to me

[seamuslee001]

Thanks @19ATF77 and @alifrumin