SceneSwitcher: Add input to copy / paste current scene path

[manuq]

Rationale: Although the web build can load a specific scene by copying the scene path to the URL hash, people is not used to edit the URL.

With this change we could say: "Copy the following line that starts with res:// and then press Ctrl + V in the game".

In the future, two Copy / Paste buttons could be exposed in the Debug Settings.

[github-actions]

Test build no longer available.

[manuq]

@wjt just an idea, what do you think?

[wjt]

I'm not sure about this. I think it's quite easy to accidentally copy or paste into the window rather than into the address bar; and it would also be surprising IMO if pasting into the window with no control focused caused a scene switch. I think this is less discoverable than the URL bar. (I agree that most normal humans don't edit URLs.)

As an aside, I don't think that binding to Ctrl + physical location of C on US English keyboard is correct:

• Rather than Ctrl, it should use “Command / Ctrl (auto)”. This is because on macOS the standard shortcut is Command (equivalent of Windows key) + C.
• Rather than the physical location of C + V it should use the logical location. I believe all mainstream latin keyboard layouts (QWERTY/QWERTZ/AZERTY) have these keys in the same place, but on Dvorak they are not. I press Ctrl + logical C (physical I) to copy.

Rather than trying to get the keyboard shortcut right, maybe we could do this:

[manuq]

Rather than trying to get the keyboard shortcut right, maybe we could do this:

Nice! Mine was a quick hack, and you are absolutely right about the keyboard shortcut issues. I very much prefer the UI solution above.