Refactor navigation and fix UI issues

- Add py-4 to main layout for detail page padding
- Show search widget only on main page (not all catalog pages)
- Add 4 menu items: Search, Catalog, Orders, Seller
- Fix orders page click to navigate to order detail
- Update CatalogPage map positioning for new nav structure
- Add search translation to cabinetNav i18n files

app/components/navigation/MainNavigation.vue

@@ -171,6 +171,7 @@ const route = useRoute()
 const { t } = useI18n()
 
 const tabs = computed(() => [
+  { key: 'search', label: t('cabinetNav.search'), path: '/', auth: false },
   { key: 'catalog', label: t('cabinetNav.catalog'), path: '/catalog/offers', auth: false },
   { key: 'orders', label: t('cabinetNav.orders'), path: '/clientarea/orders', auth: true },
   { key: 'seller', label: t('cabinetNav.seller'), path: '/clientarea/offers', auth: true, seller: true },
@@ -186,7 +187,8 @@ const visibleTabs = computed(() => {
 
 const isActiveTab = (key: string) => {
   const path = route.path
-  if (key === 'catalog') return path.startsWith('/catalog') || path === '/'
+  if (key === 'search') return path === '/' || path === '/en' || path === '/ru'
+  if (key === 'catalog') return path.startsWith('/catalog') || path.includes('/en/catalog') || path.includes('/ru/catalog')
   if (key === 'orders') return path.includes('/clientarea/orders') || path.includes('/clientarea/addresses') || path.includes('/clientarea/billing')
   if (key === 'seller') return path.includes('/clientarea/offers')
   return false