fix: add background color for code block actions

packages/ui/src/colors.css

@@ -35,6 +35,7 @@ html {
     }
 
     &[data-theme=dark] {
+      --lx-gray-01: var(--ls-primary-background-color, hsl(var(--background)));
       --background: 192 100% 11%;
       --foreground: 0 0% 95%;
       --accent: 192 80% 10%;

src/main/frontend/components/block.css

@@ -1036,7 +1036,7 @@ html.is-mac {
   }
 
   > .code-block-actions {
-    @apply absolute right-1 top-1 select-none z-[1] text-xs;
+    @apply absolute right-1 top-1 select-none z-[1] text-xs bg-gray-01;
 
     button {
       @apply !py-0 h-4 text-muted-foreground hover:text-foreground text-xs px-1;