Update to generate auto static pages with all locales

[ijjk]

Follow-up PR to #17370 this adds generating auto-export, non-dynamic SSG, and fallback pages with all locales. Dynamic SSG pages still control which locales the pages are generated with using getStaticPaths. To further control which locales non-dynamic SSG pages will be prerendered with a follow-up PR adding handling for 404 behavior from getStaticProps will be needed.

x-ref: #17110

[ijjk]

Stats from current PR

Default Server Mode (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
buildDuration	13.5s	14.1s	⚠️ +640ms
nodeModulesSize	63.4 MB	63.4 MB	⚠️ +9.32 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.714	2.824	⚠️ +0.11
/ avg req/sec	921.11	885.2	⚠️ -35.91
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.969	1.825	-0.14
/error-in-render avg req/sec	1269.85	1370.22	+100.37

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
677f882d2ed8..9b19.js gzip	11.1 kB	11.1 kB	✓
framework.HASH.js gzip	39 kB	39 kB	✓
main-ef5fcfe..d66c.js gzip	7.24 kB	7.24 kB	✓
webpack-e067..f178.js gzip	751 B	751 B	✓
Overall change	58 kB	58 kB	✓

Client Bundles (main, webpack, commons) Modern

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
677f882d2ed8..dule.js gzip	6.9 kB	6.9 kB	✓
framework.HA..dule.js gzip	39 kB	39 kB	✓
main-1c7f28c..dule.js gzip	6.29 kB	6.29 kB	✓
webpack-07c5..dule.js gzip	751 B	751 B	✓
Overall change	52.9 kB	52.9 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
polyfills-4b..e242.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_app-9a0b9e1..b37e.js gzip	1.28 kB	1.28 kB	✓
_error-ed1b0..8fbd.js gzip	3.44 kB	3.44 kB	✓
hooks-89731c..c609.js gzip	887 B	887 B	✓
index-17468f..5d83.js gzip	227 B	227 B	✓
link-409b283..e3ab.js gzip	1.32 kB	1.32 kB	✓
routerDirect..924c.js gzip	284 B	284 B	✓
withRouter-7..c13d.js gzip	284 B	284 B	✓
Overall change	7.73 kB	7.73 kB	✓

Client Pages Modern

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_app-75d3a82..dule.js gzip	625 B	625 B	✓
_error-4469a..dule.js gzip	2.29 kB	2.29 kB	✓
hooks-cbf13f..dule.js gzip	387 B	387 B	✓
index-b9a643..dule.js gzip	226 B	226 B	✓
link-92d3016..dule.js gzip	1.28 kB	1.28 kB	✓
routerDirect..dule.js gzip	284 B	284 B	✓
withRouter-f..dule.js gzip	282 B	282 B	✓
Overall change	5.37 kB	5.37 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_buildManifest.js gzip	323 B	323 B	✓
_buildManife..dule.js gzip	329 B	329 B	✓
Overall change	652 B	652 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
index.html gzip	1 kB	1 kB	✓
link.html gzip	1.01 kB	1.01 kB	✓
withRouter.html gzip	995 B	995 B	✓
Overall change	3.01 kB	3.01 kB	✓

---

Serverless Mode (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
buildDuration	14.7s	15s	⚠️ +358ms
nodeModulesSize	63.4 MB	63.4 MB	⚠️ +9.32 kB

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
677f882d2ed8..9b19.js gzip	11.1 kB	11.1 kB	✓
framework.HASH.js gzip	39 kB	39 kB	✓
main-ef5fcfe..d66c.js gzip	7.24 kB	7.24 kB	✓
webpack-e067..f178.js gzip	751 B	751 B	✓
Overall change	58 kB	58 kB	✓

Client Bundles (main, webpack, commons) Modern

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
677f882d2ed8..dule.js gzip	6.9 kB	6.9 kB	✓
framework.HA..dule.js gzip	39 kB	39 kB	✓
main-1c7f28c..dule.js gzip	6.29 kB	6.29 kB	✓
webpack-07c5..dule.js gzip	751 B	751 B	✓
Overall change	52.9 kB	52.9 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
polyfills-4b..e242.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_app-9a0b9e1..b37e.js gzip	1.28 kB	1.28 kB	✓
_error-ed1b0..8fbd.js gzip	3.44 kB	3.44 kB	✓
hooks-89731c..c609.js gzip	887 B	887 B	✓
index-17468f..5d83.js gzip	227 B	227 B	✓
link-409b283..e3ab.js gzip	1.32 kB	1.32 kB	✓
routerDirect..924c.js gzip	284 B	284 B	✓
withRouter-7..c13d.js gzip	284 B	284 B	✓
Overall change	7.73 kB	7.73 kB	✓

Client Pages Modern

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_app-75d3a82..dule.js gzip	625 B	625 B	✓
_error-4469a..dule.js gzip	2.29 kB	2.29 kB	✓
hooks-cbf13f..dule.js gzip	387 B	387 B	✓
index-b9a643..dule.js gzip	226 B	226 B	✓
link-92d3016..dule.js gzip	1.28 kB	1.28 kB	✓
routerDirect..dule.js gzip	284 B	284 B	✓
withRouter-f..dule.js gzip	282 B	282 B	✓
Overall change	5.37 kB	5.37 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_buildManifest.js gzip	323 B	323 B	✓
_buildManife..dule.js gzip	329 B	329 B	✓
Overall change	652 B	652 B	✓

Serverless bundles Overall decrease ✓

	vercel/next.js canary	ijjk/next.js i18n/generate-all-locales	Change
_error.js	1.05 MB	1.05 MB	-113 B
404.html	4.34 kB	4.34 kB	✓
hooks.html	3.92 kB	3.92 kB	✓
index.js	1.05 MB	1.05 MB	-113 B
link.js	1.1 MB	1.1 MB	-113 B
routerDirect.js	1.09 MB	1.09 MB	-113 B
withRouter.js	1.09 MB	1.09 MB	-113 B
Overall change	5.41 MB	5.41 MB	-565 B

Commit: da9b32f