fix(icons): replace hand-rolled inline SVGs with Lucide (cart, selectors, carousel)

Cart: trash/X/plus/minus/lock icons replaced with app-icon. Removed
the standalone EmptyCartIconComponent entirely - it was a duplicate
80px shopping-cart glyph with no unique illustration, only ever used
in one place; now app-icon name="cart" inline.

Language/region selectors: dropdown chevrons (duplicated 3x with
identical path data across two components) unified on
chevronDown; region pin, locate (crosshair), and globe icons replaced.
New mapPin/locate icons added to the registry.

Items carousel: rating star and add-to-cart icons replaced.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/shared/ui/icon/icon-registry.ts

@@ -42,8 +42,10 @@ import {
   LucideLink as Link,
   LucideList as List,
   LucideLoader2 as Loader2,
+  LucideLocate as Locate,
   LucideLock as Lock,
   LucideLogOut as LogOut,
+  LucideMapPin as MapPin,
   LucideMegaphone as Megaphone,
   LucideMenu as Menu,
   LucideMinus as Minus,
@@ -149,6 +151,8 @@ export const APP_ICONS = {
   history: History,
   link: Link,
   list: List,
+  locate: Locate,
+  mapPin: MapPin,
   megaphone: Megaphone,
   logOut: LogOut,
   network: Network,