feat: integrate HeroUI component library

Implemented HeroUI migration plan with the following changes:

Stage 0: Environment Setup
- Installed @heroui/react@2.8.7, @heroui/theme@2.4.26, framer-motion@12.29.2
- Configured Tailwind with HeroUI plugin
- Added HeroUI content paths to Tailwind config

Stage 1: Provider Architecture
- Created Providers.tsx wrapper combining HeroUIProvider and AppProvider
- Updated app/layout.tsx to use new Providers component
- Preserved all AppContext functionality (theme, language, translations)

Stage 2: Component Migrations
- TabNavigation: Migrated to HeroUI Tabs with keyboard navigation support
- TopBar: Migrated buttons to HeroUI Button components
- LanguageSwitch: Migrated to HeroUI Dropdown for better UX
- ThemeSwitch: Migrated to HeroUI Button (isIconOnly variant)
- MintSwapPanel: Migrated to HeroUI Tabs and Button components

Benefits:
- Enhanced accessibility with ARIA attributes and keyboard navigation
- Smooth animations and transitions via Framer Motion
- Consistent component API across the application
- Maintained all existing design tokens and color system
- Preserved dark mode functionality

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

components/AssetDescriptionTab.tsx

@@ -1,9 +1,9 @@
-import AssetDescriptionCard from "./AssetDescriptionCard";
-
-export default function AssetDescriptionTab() {
-  return (
-    <div className="flex flex-col gap-8 w-full">
-      <AssetDescriptionCard />
-    </div>
-  );
-}
+import AssetDescriptionCard from "./AssetDescriptionCard";
+
+export default function AssetDescriptionTab() {
+  return (
+    <div className="flex flex-col gap-8 w-full">
+      <AssetDescriptionCard />
+    </div>
+  );
+}