fix: hero image stretch & hub title overflow

lib/screens/discover_screen.dart

@@ -1040,12 +1040,6 @@ class _DiscoverScreenState extends State<DiscoverScreen>
                                         mediaQuery.devicePixelRatio)
                                     .clamp(900, 2400)
                                     .round(),
-                            memCacheHeight:
-                                (mediaQuery.size.height *
-                                        mediaQuery.devicePixelRatio *
-                                        0.7)
-                                    .clamp(600, 1600)
-                                    .round(),
                             placeholder: (context, url) => Container(
                               color: Theme.of(
                                 context,

lib/widgets/hub_section.dart

@@ -202,9 +202,13 @@ class _HubSectionState extends State<HubSection> {
                       children: [
                         Icon(widget.icon),
                         const SizedBox(width: 8),
-                        Text(
-                          widget.hub.title,
-                          style: Theme.of(context).textTheme.titleLarge,
+                        Expanded(
+                          child: Text(
+                            widget.hub.title,
+                            style: Theme.of(context).textTheme.titleLarge,
+                            overflow: TextOverflow.ellipsis,
+                            maxLines: 1,
+                          ),
                         ),
                         if (widget.hub.more) ...[
                           const SizedBox(width: 4),