Improve icons, add homepage links to courses

app/views/attendance_tracker/index.html.erb

@@ -6,7 +6,17 @@
       <div class="-mx-4 -my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
         <div class="inline-block py-2 align-middle px-6 lg:px-8">
           <div class="overflow-hidden shadow ring-1 ring-black ring-opacity-5 rounded-lg">
-            <h2 class="text-2xl p-2 px-4"><%= course.title %></h2>
+            <div class="flex flex-row justify-between items-center px-4 p-2">
+              <h2 class="text-2xl">
+                <%= course.title %>
+              </h2>
+
+              <% if course.homepage.present? %>
+                <a class="align-middle" href="<%= course.homepage %>">
+                  <i class="fa fa-link text-blue-600"></i>
+                </a>
+              <% end %>
+            </div>
 
             <table class="border-t-2 divide-y divide-gray-300 w-full">
               <thead class="bg-gray-50">

app/views/lectures/_lecture.html.erb

@@ -19,8 +19,12 @@
       <i class="fa fa-hourglass-start <%= prep_icon_class %>"></i>
 
       <% if lecture.attended? %>
-        <i class="fa fa-chalkboard-user text-green-700"></i>
-      <% elsif lecture.live? %>
+        <% if lecture.entirely_attended_in_person? %>
+          <i class="fa fa-chalkboard-user text-green-700"></i>
+        <% else %>
+          <i class="fa fa-video text-green-700"></i>
+        <% end %>
+      <% elsif lecture.is_live? %>
         <i class="fa fa-video text-blue-700"></i>
       <% elsif lecture.start_time.past? %>
         <i class="fa fa-times text-red-700"></i>

app/views/work_items/_work_item.html.erb

@@ -15,7 +15,7 @@
       <% if work_item.completed? %>
         <i class="fa fa-check text-green-700"></i>
       <% elsif work_item.started? %>
-        <i class="fa fa-play text-blue-700"></i>
+        <i class="fa fa-pen text-blue-700"></i>
       <% else %>
         <%# Symbol to show work has not started yet %>
         <i class="fa fa-clock text-blue-gray-700"></i>