Use cn() for class names throughout (#11278)

* add scrollbar on ptz presets dropdown

* use cn function for class names throughout

* Revert "add scrollbar on ptz presets dropdown"

This reverts commit 2cee93dc3e.

web/src/components/player/BirdseyeLivePlayer.tsx

@@ -4,6 +4,7 @@ import ActivityIndicator from "../indicators/activity-indicator";
 import JSMpegPlayer from "./JSMpegPlayer";
 import MSEPlayer from "./MsePlayer";
 import { LivePlayerMode } from "@/types/live";
+import { cn } from "@/lib/utils";
 
 type LivePlayerProps = {
   className?: string;
@@ -57,7 +58,10 @@ export default function BirdseyeLivePlayer({
 
   return (
     <div
-      className={`relative flex justify-center w-full cursor-pointer ${className ?? ""}`}
+      className={cn(
+        "relative flex justify-center w-full cursor-pointer",
+        className,
+      )}
       onClick={onClick}
     >
       <div className="absolute top-0 inset-x-0 rounded-lg md:rounded-2xl z-10 w-full h-[30%] bg-gradient-to-b from-black/20 to-transparent pointer-events-none"></div>