Fix nano charset

app/src/main/java/com/fongmi/android/tv/server/Nano.java

@@ -69,6 +69,8 @@ public class Nano extends NanoHTTPD {
 
     private void parse(IHTTPSession session, Map<String, String> files) {
         try {
+            String ct = session.getHeaders().get("content-type");
+            if (ct != null) session.getHeaders().put("content-type", ct.replace("multipart/form-data", "multipart/form-data; charset=utf-8"));
             session.parseBody(files);
         } catch (Exception ignored) {
         }