Rollup merge of #86095 - GuillaumeGomez:search-description-codeblock, r=jsha

Search description codeblock

The codeblocks are not displayed correctly:

![Screenshot from 2021-06-07 11-11-53](https://user-images.githubusercontent.com/3050060/120991915-5fb05680-c782-11eb-9b32-973a64b1f631.png)

This PR interprets the HTML correctly (and still prevent invalid HTML because of how it inserts it):

![Screenshot from 2021-06-07 11-12-00](https://user-images.githubusercontent.com/3050060/120991919-6048ed00-c782-11eb-8ac5-c3aa6508bc8b.png)

r? ```@jsha```
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Yuki Okushi 2021-06-08 13:26:35 +09:00 committed by GitHub
commit f99a892e6d
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2 changed files with 6 additions and 1 deletions

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@ -1024,7 +1024,7 @@ window.initSearch = function(rawSearchIndex) {
var description = document.createElement("div");
description.className = "desc";
var spanDesc = document.createElement("span");
spanDesc.innerText = item.desc + "\u00A0";
spanDesc.insertAdjacentHTML("beforeend", item.desc);
description.appendChild(spanDesc);
wrapper.appendChild(description);