contact icon added

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>

themes/openpowerfoundation/layouts/partials/navbar.html

@@ -60,7 +60,7 @@
 						{{ end }}
 						{{ end }}
 						{{ end }}
-						<li class="header__menu-item"><a href="/contact/"><i class="envelope icon"></i>&nbsp;Contact</a></li>
+						<li class="header__menu-item"><a href="{{ "/contact/" | relURL }}"><i class="fas fa-envelope-open-text"></i>&nbsp;Contact</a></li>
 					    <div class="mobile-view-social-join pt-3">
 							<div class="header__contact-btn join-us-button mobile-view py-4">
 								<a class="d-inline-block btn-outline-primary btn-sm btn" href="/join">Join</a>