chore: Replace dynamic blobs with HetznerLocation

lib/logic/api_maps/rest_maps/server_providers/hetzner/hetzner_api.dart

@@ -526,16 +526,15 @@ class HetznerApi extends ServerProviderApi with VolumeProviderApi {
     return GenericResult(data: servers, success: true);
   }
 
-  Future<GenericResult<List>> getAvailableLocations() async {
-    List locations = [];
+  Future<GenericResult<List<HetznerLocation>>> getAvailableLocations() async {
+    final List<HetznerLocation> locations = [];
 
     final Dio client = await getClient();
     try {
-      final Response response = await client.get(
-        '/locations',
-      );
-
-      locations = response.data!['locations'];
+      final Response response = await client.get('/locations');
+      for (final location in response.data!['locations']) {
+        locations.add(HetznerLocation.fromJson(location));
+      }
     } catch (e) {
       print(e);
       return GenericResult(

lib/logic/models/json/hetzner_server_info.dart

@@ -118,7 +118,14 @@ class HetznerPriceInfo {
 
 @JsonSerializable()
 class HetznerLocation {
-  HetznerLocation(this.country, this.city, this.description, this.zone);
+  HetznerLocation(
+    this.country,
+    this.city,
+    this.description,
+    this.zone,
+    this.name,
+  );
+  final String name;
   final String country;
   final String city;
   final String description;

lib/logic/providers/server_providers/hetzner.dart

@@ -116,15 +116,15 @@ class HetznerServerProvider extends ServerProvider {
       );
     }
 
-    final List rawLocations = result.data;
+    final List<HetznerLocation> rawLocations = result.data;
     for (final rawLocation in rawLocations) {
       ServerProviderLocation? location;
       try {
         location = ServerProviderLocation(
-          title: rawLocation['city'],
-          description: rawLocation['description'],
-          flag: getEmojiFlag(rawLocation['country']),
-          identifier: rawLocation['name'],
+          title: rawLocation.city,
+          description: rawLocation.description,
+          flag: getEmojiFlag(rawLocation.country),
+          identifier: rawLocation.name,
         );
       } catch (e) {
         continue;