Code deb package still contains references to Scratch

```
sudo apt show io.elementary.code

Description: text editor that works for you
Scratch is the text editor that works for you. It auto-saves your files,
meaning they're always up-to-date. Plus it remembers your tabs so you never
lose your spot, even in between sessions.
.
Make it yours. Scratch is written from the ground up to be extensible. Keep
things super lightweight and simple, or install extensions to turn Scratch
into a full-blown IDE; it's your choice. And with a handful of useful
preferences, you can tweak the behavior and interface to your liking.
.
It's elementary. Scratch is made to be the perfect text editor for elementary,
meaning it closely follows the high standards of design, speed, and
consistency. It's sexy, but not distracting.
.
Works with your language. Whether you're crafting code in Vala, scripting with
PHP, or marking things up in HTML, Scratch has you covered. Experience full
syntax highlighting with nearly all programming, scripting, and markup
languages.
```

运行 `sudo apt show io.elementary.code`，并将软件包描述与 issue 输出进行比较。找到 Debian 软件包描述的定义位置，删除过时的 Scratch 引用，并验证生成的软件包元数据改为描述 Code。

由索引模型根据 Issue 内容生成。