Enable Columns breaking for mobile

[ThatGuySam]

The Columns component and block don't currently break into single columns for small/mobile screens.

Perhaps this is on purpose but it should be a simple change here

.columns {
  @apply grid gap-8 grid-cols-3;

  &.columns-1 {
    @apply grid-cols-1;
  }

  &.columns-2 {
    @apply grid-cols-2;
  }

 ...etc

Becomes

.columns {
  @apply grid gap-8 lg:grid-cols-3;

  &.columns-1 {
    @apply lg:grid-cols-1;
  }

  &.columns-2 {
    @apply lg:grid-cols-2;
  }

 ...etc

[itsamoreh]

Hello @ThatGuySam! Thanks for taking a look at the starter.

I was able to replicate this. I opened an issue so that we can get this fixed.