:iphone: fix https://github.com/siyuan-note/siyuan/issues/10636

app/src/assets/scss/component/_typography.scss

@@ -15,7 +15,7 @@
     margin: 0 auto;
 
     &.emoji {
-      width: .7lh;
+      width: 1.25em;
       cursor: auto;
       max-width: none;
       vertical-align: sub; // text-top windows 不兼容
@@ -148,10 +148,6 @@
     margin: 4px 0;
     font-weight: 600;
     line-height: 1.25;
-
-    .emoji {
-      width: 1lh;
-    }
   }
 
   .h1,