fix: adding chartset to the response

Author: rluders

response.go

@@ -49,7 +49,7 @@ type Meta struct {
 //   - errs: A slice of Error structs to describe issues. Use `nil` for successful responses.
 //   - meta: Optional metadata, such as pagination information. Use `nil` if not needed.
 func SendResponse[T any](w http.ResponseWriter, code int, data T, errs []Error, meta *Meta) {
-	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
 
 	response := &Response[T]{
 		Data:   data,