Fix Viewer opening bugs in OHIF Viewer (OHIF-49)

Packages/viewerbase/client/components/viewer/loadingIndicator/loadingIndicator.html

@@ -1,7 +1,7 @@
 <template name="loadingIndicator">
     <div class="imageViewerLoadingIndicator loadingIndicator">
         <div class="indicatorContents">
-            <p>Loading... {{percentComplete}}</p>
+            <p>Loading... <i class="fa fa-spin fa-circle-o-notch fa-fw"></i> {{percentComplete}}</p>
         </div>
     </div>
     <div class="imageViewerErrorLoadingIndicator loadingIndicator">

Packages/viewerbase/client/components/viewer/loadingIndicator/loadingIndicator.styl

@@ -30,4 +30,7 @@
     position: absolute
     top: 40%
     width: 100%
+    color: $textSecondaryColor
+    font-size: 30px
+    font-weight: 200
     text-align: center