[ez][HUD] fix odc repro command background color for dark mode (#7524)

old:
<img width="702" height="118" alt="image"
src="https://github.com/user-attachments/assets/3329cd67-9605-4d63-9d0d-bc677410b0b1"
/>

<img width="701" height="121" alt="image"
src="https://github.com/user-attachments/assets/939cc19c-be41-4d65-a2a8-f7098cf9ce37"
/>


new:
<img width="704" height="114" alt="image"
src="https://github.com/user-attachments/assets/df8314d6-b5f3-49f0-9b31-cea914a07bc9"
/>

<img width="708" height="116" alt="image"
src="https://github.com/user-attachments/assets/87361f6f-77f1-4f6b-8bdd-ac5e1ff7034a"
/>

Author: clee2000

torchci/components/job/ODCCommand.tsx

@@ -273,7 +273,7 @@ function TerminalCopyBox({ text }: { text: string }) {
   return (
     <Box
       sx={{
-        backgroundColor: "#f5f5f5",
+        backgroundColor: "#b4b4b43f",
         padding: "10px",
         borderRadius: "5px",
         marginTop: "10px",