Trim tailing slash in `Headscale URL` field

[korfuri]

Minor issue: if Headscale URL is filled to include a trailing /, this causes the requests to Headscale to be of the form https://server//api/... which returns 404s.

Options:

• Assuming that headscale-ui is indeed served from /web/ and heascale's API is at /, this could be auto-configured;
• The UI should hint that trailing /s are probably unnecessary, or
• The trailing / should be trimmed automatically

Thanks!

[routerino]

I'm not actually getting this issue. I can configure the app to remove the trailing slash regardless (probably not a terrible idea), but I can't recreate the problem either.