fix: update screenshot manifest types

Updates the `screenshots` section of `MetadataRoute.Manifest` to include
`form_factor`, `label`, and `platform`, per the spec

fixes: vercel#62161
refs: https://w3c.github.io/manifest-app-info/#screenshots-member
refs: https://developer.mozilla.org/en-US/docs/Web/Manifest/screenshots

packages/next/src/lib/metadata/types/manifest-types.ts

@@ -52,9 +52,25 @@ export type Manifest = {
   }[]
   scope?: string
   screenshots?: {
+    form_factor?: 'narrow' | 'wide'
+    label?: string
+    platform?:
+      | 'android'
+      | 'chromeos'
+      | 'ipados'
+      | 'ios'
+      | 'kaios'
+      | 'macos'
+      | 'windows'
+      | 'xbox'
+      | 'chrome_web_store'
+      | 'play'
+      | 'itunes'
+      | 'microsoft-inbox'
+      | 'microsoft-store'
+    sizes?: string
     src: string
     type?: string
-    sizes?: string
   }[]
   serviceworker?: {
     src?: string