Main tab URLs that get redirected to a Requests page should take into account the value of request paramter - 'typ' for proper redirection

The 'typ' request parameter value would be taken into account to build the appropriate miq_request based URL
for the two cases below - 
(a) ```/miq_request?typ=vm```         --- Used for Services/Requests tab
(b) ```/miq_request?typ=host``` --- Used for Infrastructure/Requests tab

This resolved the issue of the user getting redirected to the incorrect Requests page when the main tab - ```Services``` or ```Infrastructure``` was clicked.

https://bugzilla.redhat.com/show_bug.cgi?id=1136363