Fix the option state choice and remove the NO_FILTER option

ace-am/src/main/java/edu/umiacs/ace/monitor/support/CStateBean.java

@@ -7,9 +7,9 @@ package edu.umiacs.ace.monitor.support;
  */
 public enum CStateBean {
 
-    NO_FILTER(""),
     ACTIVE("A"),
     ERROR("E"),
+    INTERRUPTED("I"),
     NEVER_SCANNED("N");
 
     private final String state;

ace-am/src/main/webapp/status.jsp

@@ -160,6 +160,7 @@
                 <div class="input">
                     <span class="input-group-addon">State</span>
                     <select name="state" id="state-filter" class="form-select">
+                        <option value="">Select a Collection State</option>
                         <c:forEach var="s" items="${states}">
                             <c:choose>
                                 <c:when test="${s.state eq state}">