fix: removing full height line number gutter

Author: technikhil314

pages/diff/_diff.vue

@@ -179,11 +179,6 @@ export default {
 .line-numbers {
   counter-reset: line-numbers;
   @apply relative;
-  &::before {
-    content: '';
-    width: calc(var(--max-line-number-characher) + 4px);
-    @apply bg-gray-200 left-0 top-0 bottom-0 absolute;
-  }
   p {
     padding-left: calc(var(--max-line-number-characher) - 4px);
     @apply relative;