docs: update to next 15 + eslint 9 (#9839)

* update next

* updated react

* update eslint

* finish updating eslint

* fix content lint errors

* fix docs test

* fix vale action

* fix installation errors

www/apps/resources/app/js-sdk/page.mdx

@@ -296,7 +296,7 @@ import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types"
 const ProductWidget = () => {
   const { data, isLoading } = useQuery({
     queryFn: () => sdk.admin.product.list(),
-    queryKey: ["products"]
+    queryKey: ["products"],
   })
   
   return (
@@ -331,17 +331,17 @@ import { sdk } from "../lib/config"
 import { DetailWidgetProps, HttpTypes } from "@medusajs/framework/types"
 
 const ProductWidget = ({ 
-  data: productData
+  data: productData,
 }: DetailWidgetProps<HttpTypes.AdminProduct>) => {
   const { mutateAsync } = useMutation({
     mutationFn: (payload: HttpTypes.AdminUpdateProduct) => 
       sdk.admin.product.update(productData.id, payload),
-    onSuccess: () => alert("updated product")
+    onSuccess: () => alert("updated product"),
   })
 
   const handleUpdate = () => {
     mutateAsync({
-      title: "New Product Title"
+      title: "New Product Title",
     })
   }
   
@@ -375,8 +375,8 @@ For example:
 ```ts highlights={[["2", "next"], ["3", "tags", "An array of tags to cache the data under."]]}
 sdk.store.product.list({}, {
   next: {
-    tags: ["products"]
-  }
+    tags: ["products"],
+  },
 })
 ```
 
@@ -385,7 +385,7 @@ The `tags` property accepts an array of tags that the data is cached under.
 Then, to purge the cache later, use Next.js's `revalidateTag` utility:
 
 ```ts
-import { revalidateTag } from "next/cache";
+import { revalidateTag } from "next/cache"
 
 // ...