[NEW FEATURE] Add tab to switch between files

[Kingxukai]

Hi Davep,

I'm now a heavy user of hike, and I really appreciate your contributions!

However, I've encountered an issue. I want to scroll between multiple files, but switching between them isn't as convenient as I'd like. I was thinking that it might be useful to add a tab feature—when I press t in Local Browser, I could open a file in a new tab, and when I press Enter, it would open the file in the current tab. And I can switch between files like 'Ctrl-1', 'Ctrl-2' etc. or mouse click.

What do you think?

[davep]

Hey! I can see the utility of it, for sure, although I'd probably have to give some thought to how the history works for one thing as it's all designed around a single view.

I can't promise when I'll get the time to experiment with it but I'll add it as a TODO item to look at as I can see the benefit.

[davep]

Added as #108.