Prevent creating report until filter lists are updated

Related discussion:
- https://github.com/uBlockOrigin/uBlock-issues/discussions/2582#discussioncomment-6187066

src/css/support.css

@@ -54,6 +54,11 @@ body.filterIssue #moreButton {
     display: none;
 }
 
+body.shouldUpdate:not(.updated) .e .createEntry {
+    opacity: 0.25;
+    pointer-events: none;
+}
+
 body:not(.shouldUpdate) .shouldUpdate {
     display: none;
     }

src/support.html

@@ -75,7 +75,7 @@
             <p data-i18n="supportS6P1S1"></p>
             <button type="button" data-i18n="supportFindSpecificButton">_<span class="hover"></span></button>
         </div>
-        <div class="supportEntry">
+        <div class="supportEntry createEntry">
             <hr>
             <p>
                 <label data-i18n="supportS6URL"></label><br>