Allow mouse button to toggle extended mode when in Zone snapping mode

[RamonUnch]

I've been using this since my last post.
It works great, I like it.

I especially like it since enabling mouse5 as the hotclick button.

It is not as pretty as fancyzone, but just as effective. (I mean the direct window snapping vs dragging half opacity windows).

Things like the right click being a snap toggle, and it will unsnap your held window if you untoggle snapping. Works great.

It's a bit difficult to span zones, but only because you have to do it two-handed because the span zone button is CTRL.
I would love double-rightclick to toggle zone spanning. Or perhaps "press Mouse4". If there is a way to do that, I have missed it.

As far as I'm concerned, I don't really need fancyzones anymore if it weren't that regular window dragging by the titlebar is handled by fancyzones.

Here is my zones configuration

Zone0=2875,1055,3840,2110,
Zone1=1920,1055,2875,2110,
Zone2=964,1055,1920,2110,
Zone3=0,1055,964,2110,
Zone4=2875,0,3840,1055,
Zone5=1920,0,2875,1055,
Zone6=964,0,1920,1055,
Zone7=0,0,964,1055,
Zone8=3406,-1105,3840,-50,
Zone9=3406,-2160,3840,-1105,
Zone10=0,-1105,533,-50,
Zone11=0,-2160,533,-1105,
Zone12=533,-2160,3406,-1105,
Zone13=533,-1105,3406,-50,
Zone14=-1718,1056,0,2111,
Zone15=-1718,1,0,1056,
Zone16=-3152,1,-1718,1056,
Zone17=-3152,1056,-1718,2111,
Zone18=-3840,1056,-3152,2111,
Zone19=-3840,1,-3152,1056,
Zone20=6991,1056,7680,2111,
Zone21=6991,1,7680,1056,
Zone22=5557,1056,6991,2111,
Zone23=5557,1,6991,1056,
Zone24=3840,1056,5557,2111,
Zone25=3840,1,5557,1056,

Originally posted by @shodanx2 in #511 (comment)