fix: use electron.net for beatmods.com requests to avoid Cloudflare timeouts

[moreveal]

Scope

Requests to https://beatmods.com/api/mods may hang or timeout when executed
from the Electron main process, while the same endpoints work reliably
in browsers.

This results in an infinite "Loading mods" state for users.

• closes [BUG] : My mod loader remains stuck on Loading Mods #705
• closes [BUG] : endless loading of mods #959

---

Implementation

Requests to beatmods.com are routed through Electron's Chromium network stack
using electron.net.

This avoids Cloudflare-related issues observed with Node.js HTTP clients on
large responses. The change is scoped only to beatmods.com; all other requests
remain unchanged.

---

How to Test

1. Run the app (npm run start).
2. Open the Mods tab for any Beat Saber version.
3. Verify that the mods list loads correctly.

Emoji Guide

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🟢 Nice refactor!

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🔴 This change will break something important

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Note

Resolves Cloudflare timeouts by routing BeatMods traffic through Electron’s Chromium network stack.

• Adds isBeatmodsUrl and conditionally uses new electron.net implementations for getJSON, downloadFile, and downloadBuffer
• Implements requestWithElectronNet, downloadFileWithElectronNet, and downloadBufferWithElectronNet with HTTP status validation, timeout/error handling, progress updates, and content-disposition filename support
• Keeps existing got-based logic (including IPv4/IPv6 family preference caching) for non-BeatMods URLs; headers unchanged via baseHeaders

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[sonarqubecloud]

Quality Gate passed

Issues
7 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Zagrios]

Looks good to me 🙌

[Zagrios]

Thanks a lot @moreveal ❤️
Merging ! 🚀