fix: Force size value truncation for digital ocean, change query url

- Resolve https://git.selfprivacy.org/SelfPrivacy/selfprivacy.org.app/issues/367

lib/logic/api_maps/rest_maps/server_providers/digital_ocean/digital_ocean_api.dart

@@ -455,7 +455,7 @@ class DigitalOceanApi extends RestApiMap {
   }
 
   Future<GenericResult<bool>> resizeVolume(
-    final String name,
+    final String uuid,
     final DiskSize size,
   ) async {
     bool success = false;
@@ -464,11 +464,10 @@ class DigitalOceanApi extends RestApiMap {
     final Dio client = await getClient();
     try {
       resizeVolumeResponse = await client.post(
-        '/volumes/actions',
+        '/volumes/$uuid/actions',
         data: {
           'type': 'resize',
-          'volume_name': name,
-          'size_gigabytes': size.gibibyte,
+          'size_gigabytes': size.gibibyte.toInt(),
           'region': region,
         },
       );

lib/logic/providers/server_providers/digital_ocean.dart

@@ -698,7 +698,7 @@ class DigitalOceanServerProvider extends ServerProvider {
     final DiskSize size,
   ) async =>
       _adapter.api().resizeVolume(
-            volume.name,
+            volume.uuid!,
             size,
           );
 

lib/ui/pages/server_storage/extending_volume.dart

@@ -157,7 +157,9 @@ class _ExtendingVolumePageState extends State<ExtendingVolumePage> {
                     : () {
                         context.read<ApiProviderVolumeCubit>().resizeVolume(
                               widget.diskVolumeToResize,
-                              DiskSize.fromGibibyte(_currentSliderGbValue),
+                              DiskSize.fromGibibyte(
+                                _currentSliderGbValue.truncate().toDouble(),
+                              ),
                               context.read<ApiServerVolumeCubit>().reload,
                             );
                         context.router.popUntilRoot();