更新 ToolbarListPageSkin 以使用 JFXListView 展示节点

[Glavo]

No description provided.

[Copilot]

Pull request overview

This PR refactors the ToolbarListPageSkin class to use JFXListView instead of ScrollPane + VBox for displaying list items, completing a planned migration from the temporary ToolbarListPageSkin2 class.

Changes:

• Updated ToolbarListPageSkin to use JFXListView with a customizable cell factory pattern
• Removed the temporary ToolbarListPageSkin2 class (marked with TODO for gradual replacement)
• Updated all page classes to use the new generic signature ToolbarListPageSkin<E, P>

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
ToolbarListPageSkin.java	Refactored to use JFXListView instead of ScrollPane+VBox, added createListCell hook method for customization
ToolbarListPageSkin2.java	Deleted temporary class that was being gradually replaced
GameListPage.java	Migrated from ToolbarListPageSkin2 to ToolbarListPageSkin, overrides createListCell for custom cell rendering
WorldListPage.java	Updated skin class signature to include generic type parameters, changed return type to be less specific
WorldBackupsPage.java	Updated skin class signature to include BackupInfo generic type parameter
SchematicsPage.java	Updated skin class signature to include Item generic type parameter
InstallerListPage.java	Updated skin class signature to include InstallerItem generic type parameter
JavaRestorePage.java	Updated skin class signature to include DisabledJavaItem generic type parameter
JavaManagementPage.java	Updated skin class signature to include JavaItem generic type parameter

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