Changed the algorithm for calculating grid columns on Montage page

[IgorA100]

More than 12 monitors - "6 Wide"
From 4 to 12 - "4 Wide"
Less than 4 - "2 Wide"
It will probably be better this way.

[connortechnology]

My old code was something more like:
if (monitors.length <= 3) {
columns = monitors.length;
} else if (monitors.length <= 4) {
columns = 2;
} else if (monitors.length <= 6) {
columns = 3;
} else if (monitors.length%4 == 0) {
columns = 4;
} else if (monitors.length%5 == 0) {
columns = 5;
} else if (monitors.length%6 == 0) {
columns = 6;
} else {
columns = 4;
}

[IgorA100]

Did it like this:

if ($monitorCount <= 3) {
  $default_layout = $monitorCount . ' Wide';
} else if ($monitorCount <= 4) {
  $default_layout = '2 Wide';
} else if ($monitorCount <= 6) {
  $default_layout = '3 Wide';
} else if ($monitorCount%4 == 0) {
  $default_layout = '4 Wide';
} else if ($monitorCount%6 == 0) {
  $default_layout = '6 Wide';
} else {
  $default_layout = '4 Wide';
}

Your old code was like this (and I didn't like it)

    if ((count($monitors) > 5) and (count($monitors)%5 == 0)) {
      $default_layout = '5 Wide';
    } else if ((count($monitors) > 4) and (count($monitors)%4 == 0)) {
      $default_layout = '4 Wide';
    } else if (count($monitors)%3 == 0) {
      $default_layout = '3 Wide';
    } else {
      $default_layout = '2 Wide';
    }

[IgorA100]

I liked your algorithm, which I implemented in this PR.