Add centralised link list in the network management

[MizukiTemma]

Short description

This is an updated version of #2898 with improvement sugeestion by @david-venhoff (Thank you 🙏)

Proposed changes

• Reuse the template and view of region link list
• Do not prefetch links in the centalized link list
• Use the util function replace_links if users replace an URL per ✏️ in a row of the centalized link list (because we are not prefetching)*1

Side effects

• *1 is sadly slow (but this is actually what you get when you use "Search&Replace" on the upper right corner). We can alternatively deactivate link replacement in "option" column until further performance improvement

Resolved issues

Fixes: #1443

---

Pull Request Review Guidelines