docs(isr): update generateStaticParams-isr docs (#67056)

## Why?

You can also utilize `export cont dynamic = 'force-static'` to ISR pages
at runtime, instead of having to returning an empty array in
`generateStaticParams`.

x-ref: #66151,
#62195 (comment)

docs/02-app/01-building-your-application/04-caching/index.mdx

@@ -538,7 +538,7 @@ For [dynamic segments](/docs/app/building-your-application/routing/dynamic-route
 
 To statically render all paths at build time, supply the full list of paths to `generateStaticParams`:
 
-```tsx filename="app/blog/[slug]/page.tsx" switcher
+```jsx filename="app/blog/[slug]/page.js"
 export async function generateStaticParams() {
   const posts = await fetch('https://.../posts').then((res) => res.json())
 
@@ -550,7 +550,7 @@ export async function generateStaticParams() {
 
 To statically render a subset of paths at build time, and the rest the first time they're visited at runtime, return a partial list of paths:
 
-```tsx filename="app/blog/[slug]/page.tsx" switcher
+```jsx filename="app/blog/[slug]/page.js"
 export async function generateStaticParams() {
   const posts = await fetch('https://.../posts').then((res) => res.json())
 
@@ -561,15 +561,19 @@ export async function generateStaticParams() {
 }
 ```
 
-To statically render all paths the first time they're visited, return an empty array (no paths will be rendered at build time):
+To statically render all paths the first time they're visited, return an empty array (no paths will be rendered at build time) or utilize [`export const dynamic = 'force-static'`](/docs/app/api-reference/file-conventions/route-segment-config#dynamic):
 
-```tsx filename="app/blog/[slug]/page.tsx" switcher
+```jsx filename="app/blog/[slug]/page.js"
 export async function generateStaticParams() {
   return []
 }
 ```
 
-> **Good to know:** You must always return an array from `generateStaticParams`, even if it's empty. Otherwise, the route will be dynamically rendered.
+> **Good to know:** You must return an array from `generateStaticParams`, even if it's empty. Otherwise, the route will be dynamically rendered.
+
+```jsx filename="app/changelog/[slug]/page.js"
+export const dynamic = 'force-static'
+```
 
 To disable caching at request time, add the `export const dynamicParams = false` option in a route segment. When this config option is used, only paths provided by `generateStaticParams` will be served, and other routes will 404 or match (in the case of [catch-all routes](/docs/app/building-your-application/routing/dynamic-routes#catch-all-segments)).
 
@@ -579,7 +583,7 @@ The React `cache` function allows you to memoize the return value of a function,
 
 Since `fetch` requests are automatically memoized, you do not need to wrap it in React `cache`. However, you can use `cache` to manually memoize data requests for use cases when the `fetch` API is not suitable. For example, some database clients, CMS clients, or GraphQL clients.
 
-```tsx filename="utils/get-item.ts" switcher
+```ts filename="utils/get-item.ts" switcher
 import { cache } from 'react'
 import db from '@/lib/db'
 
@@ -589,7 +593,7 @@ export const getItem = cache(async (id: string) => {
 })
 ```
 
-```jsx filename="utils/get-item.js" switcher
+```js filename="utils/get-item.js" switcher
 import { cache } from 'react'
 import db from '@/lib/db'
 

docs/02-app/02-api-reference/02-file-conventions/route-segment-config.mdx

@@ -84,7 +84,7 @@ export const dynamicParams = true // true | false,
 > **Good to know**:
 >
 > - This option replaces the `fallback: true | false | blocking` option of `getStaticPaths` in the `pages` directory.
-> - To statically render all paths the first time they're visited, you'll need to return an empty array in `generateStaticParams`.
+> - To statically render all paths the first time they're visited, you'll need to return an empty array in `generateStaticParams` or utilize `export const dynamic = 'force-static'`.
 > - When `dynamicParams = true`, the segment uses [Streaming Server Rendering](/docs/app/building-your-application/routing/loading-ui-and-streaming#streaming-with-suspense).
 > - If the `dynamic = 'error'` and `dynamic = 'force-static'` are used, it'll change the default of `dynamicParams` to `false`.
 

docs/02-app/02-api-reference/04-functions/generate-static-params.mdx

@@ -26,7 +26,7 @@ export default function Page({ params }) {
 > **Good to know**
 >
 > - You can use the [`dynamicParams`](/docs/app/api-reference/file-conventions/route-segment-config#dynamicparams) segment config option to control what happens when a dynamic segment is visited that was not generated with `generateStaticParams`.
-> - You must always return [an array from `generateStaticParams`](#all-paths-at-build-time), even if it's empty.
+> - You must return [an empty array from `generateStaticParams`](#all-paths-at-build-time) or utilize [`export const dynamic = 'force-static'`](/docs/app/api-reference/file-conventions/route-segment-config#dynamic) in order to revalidate (ISR) [paths at runtime](#all-paths-at-runtime).
 > - During `next dev`, `generateStaticParams` will be called when you navigate to a route.
 > - During `next build`, `generateStaticParams` runs before the corresponding Layouts or Pages are generated.
 > - During revalidation (ISR), `generateStaticParams` will not be called again.
@@ -218,16 +218,20 @@ export async function generateStaticParams() {
 
 #### All paths at runtime
 
-To statically render all paths the first time they're visited, return an empty array (no paths will be rendered at build time):
+To statically render all paths the first time they're visited, return an empty array (no paths will be rendered at build time) or utilize [`export const dynamic = 'force-static'`](/docs/app/api-reference/file-conventions/route-segment-config#dynamic):
 
-```tsx filename="app/blog/[slug]/page.tsx" switcher
+```jsx filename="app/blog/[slug]/page.js"
 export async function generateStaticParams() {
   return []
 }
 ```
 
 > **Good to know:** You must always return an array from `generateStaticParams`, even if it's empty. Otherwise, the route will be dynamically rendered.
 
+```jsx filename="app/changelog/[slug]/page.js"
+export const dynamic = 'force-static'
+```
+
 ### Disable rendering for unspecified paths
 
 To prevent unspecified paths from being statically rendered at runtime, add the `export const dynamicParams = false` option in a route segment. When this config option is used, only paths provided by `generateStaticParams` will be served, and unspecified routes will 404 or match (in the case of [catch-all routes](/docs/app/building-your-application/routing/dynamic-routes#catch-all-segments)).