fix(ui): remove css transition on popover and dropdown items to avoid flicker (#2563)

Author: waleedlatif1

apps/sim/components/emcn/components/popover/popover.tsx

@@ -57,10 +57,9 @@ import { cn } from '@/lib/core/utils/cn'
 /**
  * Shared base styles for all popover interactive items.
  * Ensures consistent height and styling across items, folders, and back button.
- * Uses fast transitions (duration-75) to prevent hover state "jumping" during rapid mouse movement.
  */
 const POPOVER_ITEM_BASE_CLASSES =
-  'flex h-[25px] min-w-0 cursor-pointer items-center gap-[8px] rounded-[6px] px-[6px] font-base text-[var(--text-primary)] text-[12px] transition-colors duration-75 dark:text-[var(--text-primary)] [&_svg]:transition-colors [&_svg]:duration-75'
+  'flex h-[25px] min-w-0 cursor-pointer items-center gap-[8px] rounded-[6px] px-[6px] font-base text-[var(--text-primary)] text-[12px] dark:text-[var(--text-primary)]'
 
 /**
  * Variant-specific active state styles for popover items.

apps/sim/components/ui/dropdown-menu.tsx

@@ -82,7 +82,7 @@ const DropdownMenuItem = React.forwardRef<
   <DropdownMenuPrimitive.Item
     ref={ref}
     className={cn(
-      'relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
+      'relative flex cursor-default select-none items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0',
       inset && 'pl-8',
       className
     )}
@@ -98,7 +98,7 @@ const DropdownMenuCheckboxItem = React.forwardRef<
   <DropdownMenuPrimitive.CheckboxItem
     ref={ref}
     className={cn(
-      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pr-2 pl-8 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pr-2 pl-8 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
       className
     )}
     checked={checked}
@@ -121,7 +121,7 @@ const DropdownMenuRadioItem = React.forwardRef<
   <DropdownMenuPrimitive.RadioItem
     ref={ref}
     className={cn(
-      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pr-2 pl-8 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      'relative flex cursor-default select-none items-center rounded-sm py-1.5 pr-2 pl-8 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
       className
     )}
     {...props}