fix: blog screen adaptation (#166)

Co-authored-by: Juntao Zhang <zhangjuntao@apache.org>
diff --git a/themes/docsy/assets/scss/_blog.scss b/themes/docsy/assets/scss/_blog.scss
index 7fc1071..dde0ac4 100644
--- a/themes/docsy/assets/scss/_blog.scss
+++ b/themes/docsy/assets/scss/_blog.scss
@@ -26,10 +26,9 @@
                 flex: 0 0 100%!important;
                 max-width: 100%!important;
             }
-            .toc{
-                flex: 0 0 0!important;
-                max-width:0!important;
-            }
+        }
+        .toc{
+           display: none!important;
         }
 
     }