Fix dismissable layer regression (#22995)

* reset several dropdown and context menus to non-modal

* add specific e2e test to confirm pointer events bug

web/src/views/classification/ModelSelectionView.tsx

@@ -342,7 +342,7 @@ function ModelCard({ config, onClick, onUpdate, onDelete }: ModelCardProps) {
           {config.name}
         </div>
         <div className="absolute bottom-2 right-2 z-40">
-          <DropdownMenu>
+          <DropdownMenu modal={false}>
             <DropdownMenuTrigger asChild onClick={(e) => e.stopPropagation()}>
               <BlurredIconButton>
                 <FiMoreVertical className="size-5 text-white" />

web/src/views/classification/ModelTrainingView.tsx

@@ -698,7 +698,7 @@ function LibrarySelector({
         regexErrorMessage={t("description.invalidName")}
       />
 
-      <DropdownMenu>
+      <DropdownMenu modal={false}>
         <DropdownMenuTrigger asChild>
           <Button className="flex justify-between smart-capitalize">
             {pageTitle}