chore: make this a useful placeholder tab

apps/expo/src/app/(tabs)/_layout.tsx

@@ -43,11 +43,11 @@ export default function TabLayout() {
         }}
       />
       <Tabs.Screen
-        name="about"
+        name="downloads"
         options={{
-          title: "About",
+          title: "Downloads",
           tabBarIcon: ({ focused }) => (
-            <TabBarIcon name="info-circle" focused={focused} />
+            <TabBarIcon name="download" focused={focused} />
           ),
         }}
       />

apps/expo/src/app/(tabs)/downloads.tsx

@@ -1,10 +1,10 @@
 import ScreenLayout from "~/components/layout/ScreenLayout";
 import { Text } from "~/components/ui/Text";
 
-export default function AboutScreen() {
+export default function DownloadsScreen() {
   return (
-    <ScreenLayout title="About">
-      <Text>About tab</Text>
+    <ScreenLayout title="Downloads">
+      <Text>Downloads tab</Text>
     </ScreenLayout>
   );
 }