[owenunda]

Description

Closes #1770.

Shows an "Open web interface" link on the Plugins page for plugins that implement IWebInterface. It uses the WebPath that GET /Api/Plugins returns since JustArchiNET/ArchiSteamFarm#3631 (next monthly ASF release); with older ASF versions the field isn't there and nothing changes.

• The link always ends with a slash (/drift/), otherwise ASF-ui's router catches the address instead of the plugin.
• It respects __BASE_PATH__, like the rest of ASF-ui.
• Plugins with WebPath / replace ASF-ui itself, so they get no link.

Screenshots

Additional information

Tested with ASF built from main (with the JustArchiNET/ArchiSteamFarm#3631 fix) and my plugin AchievementDrift (WebPath /drift): the API returns "WebPath":"/drift", the link shows up and opens the plugin's page.

Written with AI help, reviewed and tested by me.

Checklist

• My pull request is not a duplicate
• I added a descriptive title to this pull request
• I added a concise description or a self-explanatory screenshot to this pull request
• My code follows the code style of this project
• I have performed a self-review of my own code

[MrBurrBurr]

Thank you 🎉