chore: migrate to flutter 3.27

lib/view/page/server/tab.dart

@@ -515,10 +515,6 @@ class _ServerPageState extends State<ServerPage>
           const Icon(MingCute.unlink_2_line, size: 17, color: Colors.grey),
           () => ServerProvider.closeServer(id: s.spi.id),
         ),
-      _ when Stores.setting.serverTabUseOldUI.fetch() => (
-          ServerFuncBtnsTopRight(spi: s.spi),
-          null,
-        ),
     };
 
     // Or the loading icon will be rescaled.

lib/view/page/setting/entry.dart

@@ -424,7 +424,7 @@ final class _AppSettingsPageState extends State<AppSettingsPage> {
       return;
     }
     UIs.colorSeed = color;
-    _setting.colorSeed.put(color.value);
+    _setting.colorSeed.put(color.value255);
     context.pop();
     Future.delayed(Durations.medium1, RNodes.app.notify);
   }

lib/view/page/systemd.dart

@@ -158,7 +158,7 @@ final class _SystemdPageState extends State<SystemdPage> {
   Widget _buildTag(String tag, [Color? color, bool noPad = false]) {
     return Container(
       decoration: BoxDecoration(
-        color: color?.withOpacity(0.7) ?? UIs.halfAlpha,
+        color: color?.withValues(alpha: 0.7) ?? UIs.halfAlpha,
         borderRadius: BorderRadius.circular(5),
       ),
       child: Text(tag, style: UIs.text11)