Display full url in messages

[KenyC]

When wd-41 starts, the following is displayed:

2024-10-30T21:12:23Z ok: now serving directory: '/root/wd-41' on port: '8080', mirror dir is: '/tmp/wd-41_1660140152', tls: false, certPath: '', keyPath: ''

Since my terminal emulator recognizes URL (as I suspect quite a few do), it'd be much more useful for me to have a fuil URL displayed here than I can click on. So this PR replaces the former greeting message with:

2024-10-30T21:16:18Z ok: Server started successfully:
2024-10-30T21:16:18Z ok: - URL: http://localhost:8080
2024-10-30T21:16:18Z ok: - Serving directory: '/root/wd-41'
2024-10-30T21:16:18Z ok: - Mirror directory: '/tmp/wd-41_4088355689'
2024-10-30T21:16:18Z ok: - TLS disabled

I'm happy to have something else appear as long as http://localhost:8080 is somewhere to be found in the output.

Thanks for the useful tool at any rate!

[baalimago]

It's a good idea, thanks for the contribution!

[KenyC]

Ah glad it helps! I've corrected the stupid "if" clause

[baalimago]

Silly gofumpt being upset over two newlines. I'll fix that post-merge. Thanks for your contribution!