fix(code)!: respect shiki themes

src/partials/code.scss

@@ -32,21 +32,10 @@ pre {
       content: none;
     }
   }
-  &:not(.shiki) {
-    margin: 0;
-    padding: 0;
-    background: transparent;
-  }
 }
 .shiki {
   margin: .5rem 0;
   font-size: 1.05rem;
   font-family: var(--xm-font-code) !important;
   line-height: 1.4;
-  &.shiki-light {
-    background: var(--xm-c-shiki-light) !important;
-  }
-  &.shiki-dark {
-    background: var(--xm-c-shiki-dark) !important;
-  }
 }

src/variables/_colors.scss

@@ -12,7 +12,3 @@ $hr-border: hsla(0deg 0% 50% / .3);
 $quote-border: hsla(0deg 0% 50% / .3);
 $thead-border: #d1d5db;
 $tr-border: #e5e7eb;
-
-// Shiki (code highlighting)
-$shiki-light: #f8f8f8;
-$shiki-dark: #0e0e0e;