Open Thrive in new window

[Oanh-and-only-Oanh]

When user clicks on "Learn" tab in navigation, open THRIVE in a separate tab.

[kkartunov]

@SathyaJayabal this is now ready to test on beta

[SathyaJayabal]

verified on beta (feature branch)
thrive link.mov.zip

[SathyaJayabal]

Verified on beta(develop branch)
thrive link.mov 2.zip

[sandhiyakavi]

Verified in Prod
nav_link_Thrive.zip