feat(file-tree): add performant virtualized file tree

[bajrangCoder]

No description provided.

[greptile-apps]

Greptile Summary

This PR adds a virtualized file tree for large directory listings. The main changes are:

• Lazy hierarchical directory loading with saved expansion state.
• Recycled rows and dynamic overscan using TanStack Virtual.
• Keyboard navigation and tree accessibility attributes.
• Model-based updates for copy, move, removal, and cut state.
• Serialized FTP operations for stateful connections.

Confidence Score: 5/5

This looks safe to merge.

• The latest changes update every mounted virtual tree and preserve updates for legacy views.
• Virtual rows no longer receive direct DOM mutations when their folders are unloaded.
• No blocking issues remain in the changed synchronization paths.

Important Files Changed

Filename	Overview
src/lib/openFolder.js	Synchronizes file operations across mounted virtual trees and legacy folder views.
src/components/fileTree/index.js	Adds the hierarchical file-tree model, lazy loading, reconciliation, navigation, and model update APIs.
src/components/virtualList/index.js	Adds the TanStack Virtual adapter with row recycling and dynamic overscan.
src/plugins/ftp/src/android/com/foxdebug/ftp/Ftp.java	Serializes FTP operations to protect the stateful connection and data channel.

_{Reviews (2): Last reviewed commit: "free" | Re-trigger Greptile}

[UnschooledGamer]

LGTM, should use will change transform wherever it's not in the css style. As it would indicate the browser that this property(e.g: transform) may change later.