attendance.less: Add blue left menu

Signed-off-by: Diego Giovane Pasqualin <dpasqualin@c3sl.ufpr.br>

web/assets/less/attendance.less

@@ -103,6 +103,18 @@
     }
 }
 
+.attendance-menu-left.blue {
+    .menu-header {
+        background-color: #1d59a1;
+    }
+
+    .menu-body {
+        a {
+            color: #1e5aa2;
+        }
+    }
+}
+
 .attendance-content {
     width: 700px;
     float: left;