Hotfix/multiline rules

[abea]

Cleans up linter asking for random extra spaces after commas and colons in multiline rules. Previously in multiline rules:

• commas could not have a new line after them (comma would be at beginning of each line)
• commas would need a space before them (again, only works if comma is at beginning)
• there would need to be a dangling space after the opening colon.

Example:

.instagram {
  background:
    radial-gradient(circle farthest-corner at 35% 90%, darken(#fec564, 5%), transparent 50%),
    radial-gradient(circle farthest-corner at 0 140%, darken(#fec564, 5%), transparent 50%),
    radial-gradient(ellipse farthest-corner at 0 -25%, darken(#5258cf, 10%), transparent 50%),
    radial-gradient(ellipse farthest-corner at 20% -50%, darken(#5258cf, 10%), transparent 50%),
    radial-gradient(ellipse farthest-corner at 100% 0, @instaend, transparent 50%),
    radial-gradient(ellipse farthest-corner at 60% -20%, @instaend, transparent 50%),
    radial-gradient(ellipse farthest-corner at 100% 100%, darken(#d9317a, 10%), transparent),
    linear-gradient(darken(#6559ca, 10%), darken(#bc318f, 10%) 30%, darken(#e33f5f, 10%) 50%, darken(#f77638, 10%) 70%, darken(#fec66d, 10%) 100%);
}