PLT-3017 fixing iOS blank rendering (#3586)

webapp/sass/layout/_post.scss

@@ -458,7 +458,7 @@ body.ios {
 .post-list__table {
     display: table;
     height: 100%;
-    min-height: 100%;
+    min-height: 350px;
     table-layout: fixed;
     width: 100%;