fix：DEFECT-577 576 575 限制图片大小提示

@@ -201,9 +201,9 @@
         if (!isJpgOrPng) {
           createMessage.error('只能上传图片文件!');
         }
-        const isLt2M = (file.size as number) / 1024 / 1024 < 5;
+        const isLt2M = (file.size as number) / 1024 / 1024 < 2;
         if (!isLt2M) {
-          createMessage.error('图片大小不能超过5MB!');
+          createMessage.error('图片大小不能超过2MB!');
         }
         return isJpgOrPng && isLt2M;
       };
@@ -234,9 +234,9 @@
         if (!isJpgOrPng) {
           createMessage.error('只能上传图片文件!');
         }
-        const isLt2M = (file.size as number) / 1024 / 1024 < 5;
+        const isLt2M = (file.size as number) / 1024 / 1024 < 3;
         if (!isLt2M) {
-          createMessage.error('图片大小不能超过5MB!');
+          createMessage.error('图片大小不能超过3MB!');
         }
         return isJpgOrPng && isLt2M;
       };