fix: add target="_blank" to new external links

Author: themightychris

html-templates/designs/site-bootstrap4.tpl

@@ -44,7 +44,7 @@
                         </a>
                         <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                             <a class="dropdown-item nav-link" href="/volunteer">Volunteer</a>
-                            <a class="dropdown-item nav-link" href="https://meetup.com/code-for-philly">Events</a>			    
+                            <a class="dropdown-item nav-link" href="https://meetup.com/code-for-philly" target="_blank">Events</a>
                             <a class="dropdown-item nav-link" href="/sponsor">Sponsor</a>
                             <a class="dropdown-item nav-link" href="/projects">Find a Project</a>
                             <a class="dropdown-item nav-link" href="/pages/project_guidelines">Projects 101</a>
@@ -65,7 +65,7 @@
                             <a class="dropdown-item nav-link" href="/pages/leadership-support_team_open_positions/">Join the Organizing Team</a>
                             <a class="dropdown-item nav-link" href="/contact">Contact Us</a>
                             <a class="dropdown-item nav-link" href="/members">Member Directory</a>
-                            <a class="dropdown-item nav-link" href="/blog">Blog</a>			    
+                            <a class="dropdown-item nav-link" href="/blog">Blog</a>
                         </div>
                     </li>
                     <li class="nav-item dropdown d-none d-lg-block">

html-templates/includes/site.nav-sitelinks.tpl

@@ -2,7 +2,7 @@
     <a href="#" class="dropdown-toggle nav-link" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">{_ "Get Involved"}</a>
     <div class="dropdown-menu">
         <a class="dropdown-item" href="/projects">{_ "Active Projects"}</a>
-        <a class="dropdown-item" href="https://meetup.com/code-for-philly">{_ "Events"}</a>        
+        <a class="dropdown-item" href="https://meetup.com/code-for-philly" target="_blank">{_ "Events"}</a>
         <a class="dropdown-item" href="/pages/project_guidelines">{_ "Projects 101"}</a>
         <a class="dropdown-item" href="/pages/hack_night_program_details/">{_ "Weekly Meetups"}</a>
         <a class="dropdown-item" href="/pages/hackathons">{_ "Launchpads & Hackathons"}</a>
@@ -26,6 +26,6 @@
         <a class="dropdown-item" href="/pages/leadership/">{_ "Organizing Team"}</a>
         <a class="dropdown-item" href="/pages/open_leadership_positions/">{_ "Join the Organizing Team"}</a>
         <a class="dropdown-item" href="/contact">{_ "Contact Us"}</a>
-        <a class="dropdown-item" href="/blog">{_ "Blog"}</a>        
+        <a class="dropdown-item" href="/blog">{_ "Blog"}</a>
     </div>
 </li>