Create a dedicated `Plugins` page dedicated to user docs

[pavlenex]

Currently, the user documentation lists many plugins in the sidebar, but there is no dedicated Plugins page that serves as a proper introduction for end users.

We do have a developer-focused page at https://docs.btcpayserver.org/Development/Plugins/, but regular BTCPay Server users are not clearly introduced to plugins from a user perspective.

The goal of this issue is to create a clear first introduction point for plugins in the user documentation, so users better understand what plugins are, how they become available, and how they can expand BTCPay Server functionality.

A dedicated user-facing Plugins.md page should help explain:

• What plugins are and how they work in BTCPay Server.
• How plugin availability works, including the fact that plugins may need to be enabled by the server admin before users can access them.
• How users can discover plugins, including the public plugin list available at: https://plugin-builder.btcpayserver.org/public/plugins/
• How plugins can be installed and uninstalled by server admins.
• The risks of using third-party plugins, based on the warnings already shown in the BTCPay Server UI.
• How users can leave a rating for a plugin to help other users evaluate it. And how it helps build network of trust.
• Optional, but ideal: record a short walkthrough video introducing plugins and showing how they appear and work in practice.

IIf you’d like to work on this issue, leave a comment and I’ll assign it to you.

[BLOCKNERD-lab]

I m interested in solving this issue

[pavlenex]

@BLOCKNERD-lab Since you already picked #1563 let's wait for a pull request for that one, and once it's merged and nobody picks this one, you're free to tackle it.

[johnfawole]

a Bitcoin dev writer here, would love to handle this issue.

[pavlenex]

Hi @johnfawole, sure go for it! Once you ship a PR I'll assign the issue to you.

[DisGrid]

Can I get this issue?

[johnfawole]

@pavlenex The PR for this issue is up: #1576

Kindly let me know if I need to edit or improve anything there. Thanks.