🎨 #1659 Json解析统一优化

* 解决动态添加第一个公众号时由于configStorageMap为null报空指针异常

* Json解析统一优化

Co-authored-by: niefy <niefy@qq.com>

weixin-graal/src/main/java/cn/binarywang/wx/graal/GraalProcessor.java

@@ -1,7 +1,6 @@
 package cn.binarywang.wx.graal;
 
 import lombok.Data;
-import lombok.extern.slf4j.Slf4j;
 
 import javax.annotation.processing.AbstractProcessor;
 import javax.annotation.processing.RoundEnvironment;