Stop using JavaScript to set the body CSS class

This prevents everything from blinking, since the CSS class will be
present when the page is rendering.

lms/templates/login.html

@@ -7,14 +7,14 @@
 
 <%block name="pagetitle">${_("Log into your {platform_name} Account").format(platform_name=platform_name)}</%block>
 
+<%block name="bodyclass">view-login</%block>
+
 <%block name="js_extra">
   <script type="text/javascript">
     $(function() {
 
-      var view_name = 'view-login';
-
       // adding js class for styling with accessibility in mind
-      $('body').addClass('js').addClass(view_name);
+      $('body').addClass('js');
 
       // show forgot password modal UI if URL contains matching DOM ID
       if ($.deparam.fragment()['forgot-password-modal'] !== undefined) {

lms/templates/register-shib.html

@@ -14,14 +14,14 @@
 
 <%block name="pagetitle">${_("Preferences for {platform_name}").format(platform_name=settings.PLATFORM_NAME)}</%block>
 
+<%block name="bodyclass">view-register</%block>
+
 <%block name="js_extra">
   <script type="text/javascript">
     $(function() {
 
-      var view_name = 'view-register';
-
       // adding js class for styling with accessibility in mind
-      $('body').addClass('js').addClass(view_name);
+      $('body').addClass('js');
 
       // new window/tab opening
       $('a[rel="external"], a[class="new-vp"]')

lms/templates/register.html

@@ -16,14 +16,14 @@
 
 <%block name="pagetitle">${_("Register for {platform_name}").format(platform_name=platform_name)}</%block>
 
+<%block name="bodyclass">view-register</%block>
+
 <%block name="js_extra">
   <script type="text/javascript">
     $(function() {
 
-      var view_name = 'view-register';
-
       // adding js class for styling with accessibility in mind
-      $('body').addClass('js').addClass(view_name);
+      $('body').addClass('js');
 
       // new window/tab opening
       $('a[rel="external"], a[class="new-vp"]')

lms/templates/registration/password_reset_complete.html

@@ -23,10 +23,8 @@
   <script type="text/javascript">
     $(function() {
 
-      var view_name = 'view-passwordreset';
-
       // adding js class for styling with accessibility in mind
-      $('body').addClass('js').addClass(view_name);
+      $('body').addClass('js');
 
       // new window/tab opening
       $('a[rel="external"], a[class="new-vp"]')

lms/templates/registration/password_reset_confirm.html

@@ -27,10 +27,8 @@
   <script type="text/javascript">
     $(function() {
 
-      var view_name = 'view-passwordreset';
-
       // adding js class for styling with accessibility in mind
-      $('body').addClass('js').addClass(view_name);
+      $('body').addClass('js');
 
       // new window/tab opening
       $('a[rel="external"], a[class="new-vp"]')