loading: more loading fixes in latest wabac.js (2.2.2)

ui: fix typo of using native fs when not available

src/chooser.js

@@ -33,6 +33,10 @@ class Chooser extends LitElement
   }
 
   async onChooseNativeFile() {
+    if (!this.hasNativeFS) {
+      return;
+    }
+
     const options = {
       types: [
         {

src/coll.js

@@ -824,13 +824,11 @@ class Coll extends LitElement
             </div>
           </div>
         </div>
-
-
       </div>
     </nav><p id="skip-replay-target" tabindex="-1" class="is-sr-only">Skipped</p>`;
   }
 
-  dragStart(event) {
+  dragStart() {
     const replay = this.renderRoot.querySelector("wr-coll-replay");
     if (replay) {
       replay.setDisablePointer(true);