Add aria-haspopup to hint selectors

Helps on https://www.keepersecurity.com/ - see https://www.reddit.com/r/qutebrowser/comments/14qtlc8/no_hint_on_drop_down_list/

doc/changelog.asciidoc

@@ -158,6 +158,7 @@ Changed
   `content.site_specific_quirks.skip`, so that `String.replaceAll` is now
   polyfilled on QtWebEngine < 5.15.3, hopefully improving website
   compaitibility.
+- Hints are now displayed for elements setting an `aria-haspopup` attribute.
 
 Fixed
 ~~~~~

doc/help/settings.asciidoc

@@ -3510,6 +3510,7 @@ Default:
 * +pass:[[role="menuitemcheckbox"\]]+
 * +pass:[[role="menuitemradio"\]]+
 * +pass:[[role="treeitem"\]]+
+* +pass:[[aria-haspopup\]]+
 * +pass:[[ng-click\]]+
 * +pass:[[ngClick\]]+
 * +pass:[[data-ng-click\]]+

qutebrowser/config/configdata.yml

@@ -1741,6 +1741,7 @@ hints.selectors:
       - '[role="menuitemcheckbox"]'
       - '[role="menuitemradio"]'
       - '[role="treeitem"]'
+      - '[aria-haspopup]'
       - '[ng-click]'
       - '[ngClick]'
       - '[data-ng-click]'