Give helpers folder an index.scss, migrate ratio helper to aspect-ratio utility

scss/helpers/_ratio.scss

@@ -1,30 +0,0 @@
-@use "../config" as *;
-@use "../variables" as *;
-// mdo-do: remve for utilities
-
-// Credit: Nicolas Gallagher and SUIT CSS.
-
-.ratio {
-  position: relative;
-  width: 100%;
-
-  &::before {
-    display: block;
-    padding-top: var(--#{$prefix}aspect-ratio);
-    content: "";
-  }
-
-  > * {
-    position: absolute;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-  }
-}
-
-@each $key, $ratio in $aspect-ratios {
-  .ratio-#{$key} {
-    --#{$prefix}aspect-ratio: #{$ratio};
-  }
-}

scss/helpers/index.scss

@@ -0,0 +1,11 @@
+@import "clearfix";
+@import "color-bg";
+@import "colored-links";
+@import "focus-ring";
+@import "icon-link";
+@import "position";
+@import "stacks";
+@import "visually-hidden";
+@import "stretched-link";
+@import "text-truncation";
+@import "vr";