fix(dropdown): use nested Menu submenus for grouped options on iOS

Render titled option groups as nested Menu submenus instead of flat
Pickers, and convert the Discover filters from ContextMenu to Menu.
Keeps single-tap-to-open behavior (ContextMenu requires a long press
and reads as a context menu) while giving the nicer nested grouping.

components/search/DiscoverFilters.tsx

@@ -1,11 +1,5 @@
-import {
-  Button,
-  ContextMenu,
-  Host,
-  Picker,
-  Text as SwiftUIText,
-} from "@expo/ui/swift-ui";
-import { buttonStyle, tag } from "@expo/ui/swift-ui/modifiers";
+import { Button, Host, Menu } from "@expo/ui/swift-ui";
+import { buttonStyle } from "@expo/ui/swift-ui/modifiers";
 import { Platform, View } from "react-native";
 import { FilterButton } from "@/components/filters/FilterButton";
 import { JellyseerrSearchSort } from "@/components/jellyseerr/JellyseerrIndexPage";
@@ -47,42 +41,54 @@ export const DiscoverFilters: React.FC<DiscoverFiltersProps> = ({
           marginLeft: "auto",
         }}
       >
-        <ContextMenu>
-          <ContextMenu.Trigger>
+        <Menu
+          label={
             <Button
               modifiers={[buttonStyle("glass")]}
               systemImage='line.3.horizontal.decrease.circle'
-            ></Button>
-          </ContextMenu.Trigger>
-          <ContextMenu.Items>
-            <Picker
-              label={t("library.filters.sort_by")}
-              selection={jellyseerrOrderBy as unknown as string}
-              onSelectionChange={(value) => {
-                setJellyseerrOrderBy(value as unknown as JellyseerrSearchSort);
-              }}
-            >
-              {sortOptions.map((item) => (
-                <SwiftUIText key={item} modifiers={[tag(item)]}>
-                  {t(`home.settings.plugins.jellyseerr.order_by.${item}`)}
-                </SwiftUIText>
-              ))}
-            </Picker>
-            <Picker
-              label={t("library.filters.sort_order")}
-              selection={jellyseerrSortOrder}
-              onSelectionChange={(value) => {
-                setJellyseerrSortOrder(value as "asc" | "desc");
-              }}
-            >
-              {orderOptions.map((item) => (
-                <SwiftUIText key={item} modifiers={[tag(item)]}>
-                  {t(`library.filters.${item}`)}
-                </SwiftUIText>
-              ))}
-            </Picker>
-          </ContextMenu.Items>
-        </ContextMenu>
+            />
+          }
+        >
+          <Menu
+            label={`${t("library.filters.sort_by")}: ${t(
+              `home.settings.plugins.jellyseerr.order_by.${jellyseerrOrderBy}`,
+            )}`}
+          >
+            {sortOptions.map((item) => {
+              const isSelected =
+                jellyseerrOrderBy === (item as unknown as JellyseerrSearchSort);
+              return (
+                <Button
+                  key={item}
+                  label={t(`home.settings.plugins.jellyseerr.order_by.${item}`)}
+                  systemImage={isSelected ? "checkmark.circle.fill" : "circle"}
+                  onPress={() =>
+                    setJellyseerrOrderBy(
+                      item as unknown as JellyseerrSearchSort,
+                    )
+                  }
+                />
+              );
+            })}
+          </Menu>
+          <Menu
+            label={`${t("library.filters.sort_order")}: ${t(
+              `library.filters.${jellyseerrSortOrder}`,
+            )}`}
+          >
+            {orderOptions.map((item) => {
+              const isSelected = jellyseerrSortOrder === item;
+              return (
+                <Button
+                  key={item}
+                  label={t(`library.filters.${item}`)}
+                  systemImage={isSelected ? "checkmark.circle.fill" : "circle"}
+                  onPress={() => setJellyseerrSortOrder(item)}
+                />
+              );
+            })}
+          </Menu>
+        </Menu>
       </Host>
     );
   }