Use text-based reverse sort button instead of icon

app/assets/stylesheets/app/_ionicons.scss

@@ -15,8 +15,6 @@
 .ion, .ionicons,
 .ion-locked:before,
 .ion-plus:before,
-.ion-arrow-return-left:before,
-.ion-arrow-return-right:before,
 {
   display: inline-block; font-family: "Ionicons"; speak: none; font-style: normal; font-weight: normal; font-variant: normal; text-transform: none; text-rendering: auto; line-height: 1; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
 }
@@ -25,8 +23,4 @@
 
 .ion-plus:before { content: "\f218"; }
 
-.ion-arrow-return-left:before { content: "\f265"; }
-
-.ion-arrow-return-right:before { content: "\f266"; }
-
 /*# sourceMappingURL=ionicons.css.map */

app/assets/stylesheets/app/_stylekit-sub.scss

@@ -51,6 +51,12 @@
   }
 }
 
+.sk-menu-panel-header {
+  a {
+    cursor: pointer;
+  }
+}
+
 #session-history-menu {
   .sk-menu-panel .sk-menu-panel-row .sk-sublabel.opaque {
     opacity: 1.0