Improve css on status set page.

renderer.php

@@ -1796,7 +1796,8 @@ class mod_attendance_renderer extends plugin_renderer_base {
                 'name'      => $name,
                 'size'      => $size,
                 'maxlength' => $maxlength,
-                'value'     => $value);
+                'value'     => $value,
+                'class' => 'form-control');
         return html_writer::empty_tag('input', $attributes);
     }
 

styles.css

@@ -197,3 +197,8 @@
 #page-mod-attendance-view .averageattendance {
     font-weight: bold;
 }
+
+#page-mod-attendance-preferences .form-control {
+    width: inherit;
+    display: inherit;
+}