Design changes in sga settings page, added a settings tab and style i…

…n css file, added some classes

edx_sga/static/css/edx_sga.css

@@ -60,3 +60,66 @@
 .sga-block .error {
     color: red;
 }
+
+.modal-type-edx_sga .wrapper-comp-settings .list-input.settings-list .field.comp-setting-entry {
+   padding: 10px;
+}
+
+.modal-type-edx_sga .comp-setting-entry {
+   padding: 10px;
+   margin-right: 10px;
+   overflow: auto;
+   margin: 0;
+   font-size: 11px;
+   float: right;
+   width: 100%;
+   height: auto;
+   resize: none;
+   box-sizing: border-box;
+   border-bottom: 1px #e5e5e5;
+   box-shadow: inset 0 1px 2px 0 rgba(0,0,0,0.1);
+   font-family:'Open Sans', sans-serif;
+   color: #4c4c4c;
+   outline: 0;
+}
+
+.modal-type-edx_sga .setting-label{
+    font-weight: bold;
+    margin-left: 5px;
+}
+
+.modal-type-edx_sga .setting-input{
+    margin-left: 15px;
+    width: 30%;
+}
+
+.modal-type-edx_sga .setting-help{
+    margin-top: 10px;
+    margin-left: 5px;
+}
+
+.modal-type-edx_sga ul.editor-modes.action-list.action-modes {
+   top: 4px;
+   position: relative;
+}
+
+.modal-type-edx_sga ul.editor-modes.action-list.action-modes li {
+  background-color: #646464;
+  display: block;
+  padding: 5px 10px;
+  border-radius: 4px;
+  color: #FFF;
+  text-transform: uppercase;
+  font-size: 15px;
+  text-shadow: 0px 0px 2px #333;
+  width: 90px;
+  text-align: center;
+  margin-left: auto;
+  height: auto;
+}
+
+.modal-type-edx_sga ul.editor-modes.action-list.action-modes li a:hover {
+   background: #777;
+   color: #FFF;
+}
+

edx_sga/templates/staff_graded_assignment/edit.html

@@ -16,3 +16,7 @@
     {% endfor %}
   </ul>
 </div>
+
+<script type="application/javascript">
+ $("ul.action-modes").html(' <li class="view-button sga_editor_tab">{% trans "Settings" %}</li>')
+</script>