SnackBar is not displayed on top of the Drawer

[FooIbar]

需求 / Requirement

建议实现 / Suggested implements

Well it also shouldn't according to Material Design guidelines.

Find a replacement to display error message or #310 ?

备注 / Addition details

No response

EhViewer 版本号 / EhViewer version code

1.8.9.0-SNAPSHOT

EhViewer CI 版本 / EhViewer CI Version

14a28c6

自查步骤 / Verify steps

• 如果您有足够的时间和能力，并愿意为此提交 PR ，请勾上此复选框 / Pull request is welcome. Check this if you want to start a pull request
• 您已仔细查看并知情 Q&A 中的内容 / You have checked Q&A carefully
• 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 只提及一个功能。如果您有多个功能请求，烦请发起多个 Issue / Ensure there is only one feature request in this issue. Please make mutiply issue for mutiply feature request
• 您确保已使用最新 CI 版本测试，并且该功能在最新 CI 版本中并未按照预期实现 / This feature don't implement correctly in latest CI version