Move Shop store into separate file

src/utils/stores/shop.ts

@@ -0,0 +1,43 @@
+import { writable, derived } from 'svelte/store'
+
+
+/**
+ * Shop
+ */
+export const shopLocations = writable([])
+
+
+
+/**
+ * Cart
+ */
+/** Cart open state */
+export const cartOpen = writable(false)
+
+/** Cart open state */
+export const cartId = writable(null)
+
+// Write to localStorage when changing cartId
+if (typeof localStorage !== 'undefined') {
+    if (localStorage.getItem('cartId')) {
+        // console.log('existant', localStorage.getItem('cartId'))
+        cartId.set(localStorage.getItem('cartId'))
+    }
+    cartId.subscribe(value => localStorage.setItem('cartId', value))
+}
+
+/** Raw Cart data */
+export const cartData = writable(null)
+
+/** Cart data is being updated */
+export const cartIsUpdating = writable(false)
+
+/** Amount of products present in cart */
+export const cartAmount = derived(cartData, ($cart) => {
+    return $cart && $cart.item_quantity > 0 ? $cart.item_quantity : 0
+})
+
+/**
+ * Notifications
+ */
+export const cartNotifications = writable([])