Bug：多个符号的情况下出现错位

[devhaozi]

使用 0.9.4 版本的 Heti

问题如图：

HTML结构如下：

<p dir="auto"><heti-spacing class="heti-spacing-start">Discourse</heti-spacing>官方已经为这些模型打包好了<heti-spacing class="heti-spacing-start heti-spacing-end">Docker</heti-spacing>镜像，所以我们可以很轻松地在服务器上运行模型。<br>
注意：支持中文的嵌入模型<code>multilingual-e5-small</code>特别占内存（在我这里容器占用了<heti-spacing class="heti-spacing-end">30 G+</heti-spacing><heti-adjacent class="heti-adjacent-half"><heti-adjacent class="heti-adjacent-half"><heti-adjacent class="heti-adjacent-half"><heti-adjacent class="heti-adjacent-half">）</heti-adjacent></heti-adjacent></heti-adjacent></heti-adjacent>，其他容器占用约<heti-spacing class="heti-spacing-start heti-spacing-end">2 G /</heti-spacing>个。</p>

可以发现<heti-adjacent class="heti-adjacent-half">被重复添加了 4 次，导致此问题。

[devhaozi]

我优化了 JS，避免重复调用 autoSpace，问题解决。