sync edge bc scaling logic and rescale helpers with networkx

[Schefflera-Arboricola]

ref. PR networkx/networkx#8256

[Copilot]

Pull Request Overview

This PR synchronizes the edge betweenness centrality scaling logic with NetworkX by consolidating rescale helpers and updating parameter handling. The changes align with NetworkX PR #8256.

• Replaces _rescale_e with unified _rescale function for both node and edge betweenness centrality
• Updates parameter handling to use conditional sampled_nodes assignment instead of passing k directly
• Updates documentation URLs to reflect new line numbers after import reorganization

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
nx_parallel/algorithms/centrality/betweenness.py	Consolidates rescaling logic by using _rescale for both node and edge betweenness, updates parameter handling for sampled nodes
_nx_parallel/init.py	Updates documentation URLs to reflect new line numbers after code changes

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[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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[dschult]

Looks good to me!