WebUI: Allow to display only hostname in the Tracker column

[skomerko]

It is now possible to display only hostname in the Tracker column.

Closes #11357.

[stalkerok]

I've been meaning to request the corresponding function for GUI for a long time, but I forget to do it. @glassez is it possible to implement this for GUI?

[glassez]

Now just the hostname is displayed instead.

Are there any strong reasons to hide full announce URLs? Even if someone has them, someone else may have reasons to see the full announce URLs. So I wouldn't remove this feature altogether. Wouldn't it make sense to show the full URL in the tooltip? Or at least make this behavior configurable?

[stalkerok]

Are there any strong reasons to hide full announce URLs?

Right now, sorting is done by protocol rather than hostname, this is rather inconvenient. In addition, full addresses can be quite long.

Even if someone has them, someone else may have reasons to see the full announce URLs. So I wouldn't remove this feature altogether. Wouldn't it make sense to show the full URL in the tooltip? Or at least make this behavior configurable?

Anyway, the column shows only one address (somehow very random), can click “Edit trackers” and see all used addresses for this torrent.

[skomerko]

Now just the hostname is displayed instead.

Are there any strong reasons to hide full announce URLs? Even if someone has them, someone else may have reasons to see the full announce URLs. So I wouldn't remove this feature altogether. Wouldn't it make sense to show the full URL in the tooltip? Or at least make this behavior configurable?

Additional changes:

1. Full announce URL is always shown in the tooltip
2. By default only hostname is displayed (ok?), but now it's possible to change it
3. Added new section to the Behavior tab for WebUI-only settings (more coming in the future)

English strings should be checked if they are correct.

[Chocobo1]

@skomerko Thank you!