The color and length of the Navbar in Desktop View are abnormal

[3gf8jv4dv]

复现步骤 / Step to reproduce

Install the latest version of Nyanpasu, then resize the window so that it fits into the desktop view.

预期行为 / Expected behavior

The button text color changes based on the theme color, and the button length adjusts to fit the text rather than remaining fixed.

实际行为 / Actual behavior

应用日志 / App logs

No response

备注 / Addition details

No response

环境信息 / Environment information

Windows 11, version 25H2
Nyanpasu v2.0.0 alpha+0d2fab7

自查步骤 / Verify steps

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• 您已搜索过 Issue Tracker，没有找到类似内容 / I have searched on Issue Tracker, No duplicate or related open issue has been found
• 您确保这个 Issue 只提及一个问题。如果您有多个问题报告，烦请发起多个 Issue / Ensure there is only one bug report in this issue. Please make multiply issue for multiply bugs
• 您确保已使用最新 Pre-release 版本测试，并且该问题在最新 Pre-release 版本中并未解决 / This bug have not solved in latest Pre-release version