fix(ui): Fixed CodeBlock line number width (#5640)

**What**
- Fixes the width of lineNumbers in the CodeBlock component according to the widest number.
- Introduces a new prop on snippets that allows users to hide the copy button. Also updated docs to reflect this.

Before:
![image](https://github.com/medusajs/medusa/assets/45367945/07852c2e-434c-44df-93b7-4078148cb74f)

After:
<img width="742" alt="image" src="https://github.com/medusajs/medusa/assets/45367945/5ce845f7-b8c7-411c-abfb-fa03448aeb1a">

Closes #5639

www/apps/ui/src/props/code-block.tsx

@@ -8,7 +8,7 @@ const codeBlockProps: PropDataMap = [
       type: "object",
       name: "CodeSnippet[]",
       shape:
-        "{\n  label: string\n  language: string\n  code: string\n  hideLineNumbers?: boolean\n}[]",
+        "{\n  label: string\n  language: string\n  code: string\n  hideLineNumbers?: boolean\n  hideCopy?: boolean\n}[]",
     },
   },
 ]