Resolve #247

Modify API call:
`/v2/Connector/Types`
Returns: Dictionary with Connector-Names and supported languages.

Tranga/Server/v2Connector.cs

@@ -14,7 +14,7 @@ public partial class Server
     private ValueTuple<HttpStatusCode, object?> GetV2ConnectorConnectorNameGetManga(GroupCollection groups, Dictionary<string, string> requestParameters)
     {
         if(groups.Count < 1 ||
-           !_parent.GetConnectors().Contains(groups[1].Value) ||
+           !_parent.GetConnectors().Keys.Contains(groups[1].Value) ||
            !_parent.TryGetConnector(groups[1].Value, out MangaConnector? connector) ||
            connector is null)
             return new ValueTuple<HttpStatusCode, object?>(HttpStatusCode.BadRequest, $"Connector '{groups[1].Value}' does not exist.");

Tranga/Tranga.cs

@@ -49,9 +49,9 @@ public bool TryGetConnector(string name, out MangaConnector? connector)
         return connector is not null;
     }
 
-    public IEnumerable<string> GetConnectors()
+    public Dictionary<string, string[]> GetConnectors()
     {
-        return _connectors.Select(c => c.name);
+        return _connectors.ToDictionary(c => c.name, c => c.SupportedLanguages);
     }
 
     public Manga? GetPublicationById(string internalId) => GetCachedManga(internalId);

docs/API_Calls_v2.md

@@ -34,7 +34,7 @@ Returns available Manga Connectors (Scanlation sites)
 <details>
   <summary>Returns</summary>
 
-  List of strings with Names.
+  Dictionary with Connector-Names and supported languages.
 </details>
 
 ### <sub>![GET](https://img.shields.io/badge/GET-0f0)</sub> `/v2/Connector/<ConnectorName>/GetManga`