Mark version as 1.0.0 release and add platform indicator

Author: KamilSztandur

kanbansim/lib/features/main_page/widgets/menu_bar.dart

@@ -213,9 +213,10 @@ class _ToolBar extends StatelessWidget {
           title: AppLocalizations.of(context).info,
           icon: Icons.info_outline_rounded,
           onTap: () {
+            String platform = _getPlatformName(context).toUpperCase();
             showAboutDialog(
               context: context,
-              applicationVersion: '0.9.8',
+              applicationVersion: '1.0.0-$platform',
               applicationIcon: Icon(Icons.info_outline_rounded),
               applicationLegalese:
                   AppLocalizations.of(context).applicationLegalese,
@@ -241,4 +242,12 @@ class _ToolBar extends StatelessWidget {
       ],
     );
   }
+
+  String _getPlatformName(BuildContext context) {
+    if (KanbanSimApp.of(context).isWeb()) {
+      return "web";
+    } else {
+      return "desktop";
+    }
+  }
 }