This patch makes the three dots in the dock change their size when bigger icon size is used.
The logic here is such that the dots are scaled only when a certain icon size is reached;
for instance, the dots will remain unchanged if icon size is less than 128x128 px, and will
be twice as big if it's set to a value from 128x128 to 184x184 px. The get_dot_mult() func
calculates and returns the scale multiplier. In the draw_dot() func, XDrawLine() and
XDrawPoint() were replaced with XFillRectangle() because those funcs do not allow their
result to be scalable. This patch does not require additional icon size values (those bigger
than 96x96 px) to exist, but makes no use without them.
The classic WindowMaker allows tile icon size up to 96x96 px. This patch rises this value
to 256x256 px. It also sets the max number of visible items in the corresponding pref list
to 29 (instead of 9), so the new values show up in the list. This patch makes it possible
to use dockapps that allow changing their size to bigger than 64x64 px, see
https://gitlab.com/xander1988/dockapps for more info.
Xander