Add a filter for media that is missing specific fields

client/components/controls/FilterSelect.vue

@@ -107,6 +107,11 @@ export default {
           value: 'progress',
           sublist: true
         },
+        {
+          text: 'Missing',
+          value: 'missing',
+          sublist: true
+        },
         {
           text: 'Issues',
           value: 'issues',
@@ -200,6 +205,9 @@ export default {
     progress() {
       return ['Finished', 'In Progress', 'Not Started']
     },
+    missing() {
+      return ['ASIN', 'ISBN', 'Subtitle', 'Author', 'Publish Year', 'Series', 'Volume Number', 'Description', 'Genres', 'Tags', 'Narrator', 'Publisher', 'Language', ]
+    },
     sublistItems() {
       return (this[this.sublist] || []).map((item) => {
         if (typeof item === 'string') {