fix: Do not hide period selector from the memory usage page

assets/translations/en.json

@@ -144,7 +144,8 @@
         "unsupported": "You can't view resource usage charts without the server provider token.",
         "system": "System",
         "ssh_users": "SSH users",
-        "ram_usage": "Average usage: {average}. Maximum: {max}."
+        "ram_usage": "Average usage: {average}. Maximum: {max}.",
+        "failed_to_load_memory_metrics": "Couldn't load memory usage data. This might be a connection issue, or there is not enough data yet."
     },
     "server": {
         "card_title": "Server",

lib/ui/pages/server_details/memory_usage_by_service_screen.dart

@@ -33,39 +33,43 @@ class _MemoryUsageByServiceContents extends StatelessWidget {
     final Period period = cubit.state.period;
     final MetricsState state = cubit.state;
 
+    final List<Widget> children = [];
+
     if (state is MetricsUnsupported ||
         (state is MetricsLoaded && state.memoryMetrics == null)) {
-      return BrandHeroScreen(
-        heroTitle: 'resource_chart.memory'.tr(),
-        children: [
+      children.addAll([
         Center(
           child: Center(
+            child: Padding(
+              padding: const EdgeInsets.symmetric(vertical: 32.0),
               child: EmptyPagePlaceholder(
                 title: 'basis.error'.tr(),
+                description:
+                    'resource_chart.failed_to_load_memory_metrics'.tr(),
                 iconData: Icons.error_outline_outlined,
               ),
             ),
           ),
-        ],
-      );
+        ),
+      ]);
     }
     if (state is MetricsLoading) {
-      return BrandHeroScreen(
-        heroTitle: 'resource_chart.memory'.tr(),
-        children: const [
-          Center(
+      children.addAll([
+        const Center(
+          child: Padding(
+            padding: EdgeInsets.symmetric(vertical: 32.0),
             child: CircularProgressIndicator(),
           ),
-        ],
-      );
+        ),
+      ]);
     }
 
+    if (state is MetricsLoaded && state.memoryMetrics != null) {
       final averageUsageByServices =
-        (state as MetricsLoaded).memoryMetrics!.averageMetricsByService;
+          state.memoryMetrics!.averageMetricsByService;
       final maxUsageByServices = state.memoryMetrics!.maxMetricsByService;
 
       // For each service, gather average and max usages
-    final List<Widget> children = [];
       for (final slice in averageUsageByServices.keys.sorted()) {
         final DiskSize averageUsage =
             DiskSize(byte: averageUsageByServices[slice]?.toInt() ?? 0);
@@ -120,6 +124,7 @@ class _MemoryUsageByServiceContents extends StatelessWidget {
           ),
         );
       }
+    }
 
     return BrandHeroScreen(
       heroTitle: 'resource_chart.memory'.tr(),

lib/ui/pages/services/config_item_fields/basic_enum_config_item.dart

@@ -32,10 +32,12 @@ class _BasicEnumConfigItemState extends State<BasicEnumConfigItem> {
         DropdownMenuItem<String>(
           value: widget.configItem.value,
           enabled: false,
-          child: Text(widget.configItem.value,
+          child: Text(
+            widget.configItem.value,
             style: Theme.of(context).textTheme.titleMedium!.copyWith(
                   color: Theme.of(context).colorScheme.error.withOpacity(0.7),
-                  )),
+                ),
+          ),
         ),
       );
     }