Animate detailed view transitions

Improve user experience by adding smooth animation transitions to expand/collapse of All Fields (Detailed View) sections, enhance collapsible base to support animation, and apply transitions to detailed view wrapper and chevron indicators.

X-Lovable-Edit-ID: edt-9a567ba5-b52f-46b3-bdef-b847b9ba7963

src/components/moderation/DetailedViewCollapsible.tsx

@@ -1,4 +1,4 @@
-import { ChevronDown, ChevronUp } from 'lucide-react';
+import { ChevronDown } from 'lucide-react';
 import { Collapsible, CollapsibleTrigger, CollapsibleContent } from '@/components/ui/collapsible';
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
@@ -49,16 +49,17 @@ export function DetailedViewCollapsible({
               <span className="text-xs text-muted-foreground normal-case font-normal">
                 {isCollapsed ? 'Show' : 'Hide'}
               </span>
-              {isCollapsed ? (
-                <ChevronDown className="h-4 w-4 text-muted-foreground transition-transform duration-200" />
-              ) : (
-                <ChevronUp className="h-4 w-4 text-muted-foreground transition-transform duration-200" />
+              <ChevronDown 
+                className={cn(
+                  "h-4 w-4 text-muted-foreground transition-all duration-300 ease-out",
+                  !isCollapsed && "rotate-180"
                 )}
+              />
             </div>
           </Button>
         </CollapsibleTrigger>
         
-        <CollapsibleContent className="mt-3 data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down">
+        <CollapsibleContent className="mt-3">
           {children}
         </CollapsibleContent>
       </div>

src/components/ui/collapsible.tsx

@@ -1,9 +1,30 @@
+import * as React from "react";
 import * as CollapsiblePrimitive from "@radix-ui/react-collapsible";
+import { cn } from "@/lib/utils";
 
 const Collapsible = CollapsiblePrimitive.Root;
 
 const CollapsibleTrigger = CollapsiblePrimitive.CollapsibleTrigger;
 
-const CollapsibleContent = CollapsiblePrimitive.CollapsibleContent;
+const CollapsibleContent = React.forwardRef<
+  React.ElementRef<typeof CollapsiblePrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof CollapsiblePrimitive.Content>
+>(({ className, children, ...props }, ref) => (
+  <CollapsiblePrimitive.Content
+    ref={ref}
+    className={cn(
+      "overflow-hidden transition-all duration-300 ease-out",
+      "data-[state=closed]:animate-accordion-up",
+      "data-[state=open]:animate-accordion-down",
+      className
+    )}
+    {...props}
+  >
+    <div className="animate-fade-in">
+      {children}
+    </div>
+  </CollapsiblePrimitive.Content>
+));
+CollapsibleContent.displayName = "CollapsibleContent";
 
 export { Collapsible, CollapsibleTrigger, CollapsibleContent };