Support bun as drop in replacement for npm/node

Summary

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Zed assumes Node.js runtime and raises errors when running on Node.js-compatible runtimes, such as bun.

Description
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Steps to reproduce:
1. Add to your Zed settings:

2. open any project that triggers language servers

Expected Behavior: Zed should work with node-compatible runtimes similarly as e.g. vscode does.
Actual Behavior: Zed checks for node-compatible runtime and fails if version doesn't match

error examples:



Zed Version and System Specs

Zed 0.188.6 – /Applications/Zed.app