Feat.-quest 2, sketch: add a toggle to enable NeoMode

[nyngwang]

What(TF) is NeoMode, exactly?

Take it easy, let's take a look at the classic scene in Matrix:

When NeoMode is enabled, and the behaviour of NeoZoomToggle will change:

• Instead of zoom(ing)-in the current buffer, it jumps through all the same buffers across all tabs.
• This might be very fucking hard but I think it's possible to provide and UI to let a user jump to the exact tab containing this buffer.

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Some issues here

• There might be many same-buffer splits under a tab during the jumping.
• This will require adding a toggle which creates more burden for a user to memorize how(FUCK) many keybindings to do a simple work.

[nyngwang]

I think this is achievable now after the breaking change(s) done in #20

[nyngwang]

Bullshit