fix: set status not work

ctx.go

@@ -255,8 +255,8 @@ func (c *Ctx) Status(code int) *Ctx {
 	c.lock.Lock()
 	defer c.lock.Unlock()
 
-	c.StatusCode = code
-	c.writermem.status = code
+	c.writermem.WriteHeader(code)
+	c.StatusCode = c.writermem.status
 
 	return c
 }

response_writer.go

@@ -103,7 +103,7 @@ func (w *responseWriter) Size() int {
 }
 
 func (w *responseWriter) Written() bool {
-	return w.size != noWritten || w.status != 0
+	return w.size != noWritten
 }
 
 // Hijack implements the http.Hijacker interface.