Limit date input field chars and length

src-ui/src/app/components/common/date-dropdown/date-dropdown.component.ts

@@ -140,4 +140,10 @@ export class DateDropdownComponent implements OnInit, OnDestroy {
     this.onChange()
   }
 
+  // prevent chars other than numbers and separators
+  onKeyPress(event: KeyboardEvent) {
+    if (!/[0-9,\.\/-]+/.test(event.key)) {
+      event.preventDefault();
+    }
+  }
 }