feat: Fix non-standard user agent not recognized.

[mxdabc]

Fix the issue #5
Fix non-standard user agent not recognized.

[mxdabc]

What can be achieved so far:
If the user-agent does not match neither the browser name nor the operating system name, an unknown icon + question mark will be displayed to avoid repeating the display twice.
For example, this:Lavf/57.71.100
If the browser name matches the user-agent but does not match the operating system name, the browser name is displayed, and the operating system displays an unknown icon + question mark.
For example, this:Mozilla/5.0
Match the operating system, not match the browser, the same logic as above.
For example, this:Test/1234; (compatible; Windows NT 6.0)

In PHP 8.0 and above, some user-agents with long parentheses, plus signs, or special symbols will report a warning, and you can choose to disable PHP error messages.

Maybe 99% of the cases were considered!😀

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到目前为止可以实现的逻辑操作：
如果 user-agent 与浏览器名称和操作系统名称都不匹配，则会显示未知图标 + 问号，以避免重复显示。
例如，this：Lavf/57.71.100
如果user-agent 匹配浏览器名称，但与操作系统名称不匹配，则显示浏览器名称，并且操作系统显示未知图标 + 问号。
例如，this：Mozilla/5.0
匹配操作系统，不匹配浏览器，逻辑同上。
例如，this：Test/1234 (compatible; Windows NT 6.0)

在 PHP 8.0 及更高版本中，一些带有长括号、加号或特殊符号的用户代理将报告警告，您可以选择禁用 PHP 错误消息。

也算是考虑了99%的情况了吧！ 😀

[mxdabc]

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