css fixes, docs

front/css/app.css

@@ -1253,12 +1253,16 @@ input[readonly] {
 }
 
 .filter-group {
-    flex: 1  100px; 
     box-sizing: border-box; /* Ensure padding and borders are included in the width */
     padding: 1em;
     padding-top: 0;
 }
 
+.filter-dropdown
+{
+    width:7em
+}
+
 .modal-header .close
 {
     display: flex;