fixed deprecated warnings

refilc_mobile_ui/lib/screens/navigation/navbar_item.dart

@@ -34,7 +34,7 @@ class NavbarItem extends StatelessWidget {
             padding: const EdgeInsets.all(12.0),
             decoration: BoxDecoration(
               color: active
-                  ? Theme.of(context).colorScheme.tertiary.withOpacity(.2)
+                  ? Theme.of(context).colorScheme.tertiary.withValues(alpha: .2)
                   : null,
               borderRadius: BorderRadius.circular(14.0),
             ),
@@ -50,8 +50,8 @@ class NavbarItem extends StatelessWidget {
             //     IconTheme(
             //       data: IconThemeData(
             //         color: Theme.of(context).brightness == Brightness.light
-            //             ? Colors.black.withOpacity(.5)
-            //             : Colors.white.withOpacity(.3),
+            //             ? Colors.black.withValues(alpha: .5)
+            //             : Colors.white.withValues(alpha: .3),
             //       ),
             //       child: icon,
             //     ),

refilc_mobile_ui/lib/screens/navigation/status_bar.dart

@@ -59,8 +59,10 @@ class StatusBarState extends State<StatusBar> {
                         statusProvider.progress -
                     36.0,
                 decoration: BoxDecoration(
-                  color:
-                      Theme.of(context).colorScheme.secondary.withOpacity(0.8),
+                  color: Theme.of(context)
+                      .colorScheme
+                      .secondary
+                      .withValues(alpha: 0.8),
                   borderRadius: BorderRadius.circular(45.0),
                 ),
               ),