fix(application-tray): Fix submenu display issue

[re2zero]

Fix submenu display issue and scroll arrows in system tray applications. 修复 clash、中州韵输入法等托盘应用的二级菜单显示问题。

Log: 修复托盘应用二级菜单显示和滚动箭头问题
PMS: BUG-333243
Influence: 托盘应用二级菜单现在能正确显示，不再出现无意义的滚动箭头，提升用户体验。

[deepin-ci-robot]

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[deepin-bot]

TAG Bot

New tag: 2.0.28
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #442

[deepin-bot]

TAG Bot

New tag: 2.0.29
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #446

[deepin-bot]

TAG Bot

New tag: 2.0.30
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #452

[deepin-bot]

TAG Bot

New tag: 2.0.31
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #454

[deepin-bot]

TAG Bot

New tag: 2.0.32
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #456