Add missing type stubs for newer visualization methods

[Debajeet-1411]

Summary

Adds missing declarations to py/visdom/__init__.pyi for public methods already implemented in the Visdom class:

• sunburst()
• dual_axis_lines()
• properties()
• embeddings()

Motivation

The implementation and type stub files are currently out of sync, which can result in incomplete IDE autocomplete suggestions and inaccurate static analysis for users relying on type information.

Changes

Added the corresponding method signatures to the Visdom class stub in __init__.pyi.

Impact

• Improves IDE autocomplete and parameter hints for the affected methods.
• Improves compatibility with static type checkers such as mypy and pyright.
• No runtime behavior is changed.

Summary by Sourcery

Add missing type stub declarations for additional Visdom visualization methods to keep stubs in sync with the implementation.

New Features:

• Expose type signatures for the Visdom properties, embeddings, sunburst, and dual_axis_lines methods in the public .pyi stub.

Enhancements:

• Extend typing imports to include Callable for use in the embeddings method stub.

[sourcery-ai]

Reviewer's Guide

Adds missing type stubs in py/visdom/init.pyi for four existing Visdom visualization methods so that the stub file matches the implementation and supports better static typing and IDE features.

File-Level Changes

Change	Details	Files
Expose newer visualization APIs in the Visdom type stub so they are available to static checkers and IDEs.	Extend typing imports to include Callable, required for a new callback parameter. Add properties(...) method signature to the Visdom class stub, including data, win, env, and opts parameters. Add embeddings(...) method signature with features, labels, an optional data_getter callback, data_type, win, env, and opts parameters. Add sunburst(...) method signature with labels, parents, optional values, win, env, and opts parameters. Add dual_axis_lines(...) method signature with optional X, Y1, Y2 tensors plus opts, win, and env parameters.	py/visdom/__init__.pyi

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

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[rajnisht7]

@Debajeet-1411 changes looks good, just resolve the conflicts