This insures we add entries for each locale version of a non-dynamic SSG page since they can have unique revalidate values. This requires a version bump in the `prerender-manifest` since the static routes now contain additional values which need to be handled separately. 

Fixes: https://github.com/vercel/next.js/issues/21568 

* Update CI docs change diff check

* Increse fetch depth for merge base detecting

* Update cancel branches config

I tried the preset provided at `packages/next-plugin-storybook` but it was raising error due to an [unsafe negation](https://eslint.org/docs/rules/no-unsafe-negation) in the `preset.js` file.

I added a test to show the error:
```
● next-plugin-storybook filterModuleRules › should filter module rules correctly

    TypeError: rule.test.test is not a function

      48 |       if (!rule.test instanceof RegExp) return true
      49 |       // use Next.js' built-in CSS
    > 50 |       if (rule.test.test('hello.css')) {
         |                     ^
      51 |         return false
      52 |       }
      53 |       // use next-babel-loader instead of storybook's babel-loader

      at filter (../packages/next-plugin-storybook/preset.js:50:21)
          at Array.filter (<anonymous>)
      at Object.filterModuleRules (../packages/next-plugin-storybook/preset.js:46:28)
      at Object.<anonymous> (unit/webpack-config-overrides.test.js:12:36)
```

Co-authored-by: Nrokobekavac0 <roko.beakavac2003@gmail.com>
Co-authored-by: NTim Neutkens <tim@timneutkens.nl>
Co-authored-by: NJoe Haddad <joe.haddad@zeit.co>

Kontent example also contains the implementation of the preview capabilities in the example.

Including the example as it is [Data fetching section](https://nextjs.org/docs/basic-features/data-fetching).

Change type of GetServerSidePropsContext.req.cookies the be the same as NextApiRequest.cookies (#21336)

The original type for `GetServerSidePropsContext.req.cookies` was introduced in #19724. In the PR, the test at `test/integration/typescript/test/index.test.js` expects req.cookies to always exist, so `req.cookies` will never be undefined.

I'm guessing that req.cookies is parsed using the same cookie middleware as `NextApiRequest`, in which case `req.cookies` should be `{ [key: string]: string }`, not `{ [key: string]: any }`.

Closes #17042

I removed mkdirp from package.json taskfil.js, and ran `yarn && ./check-pre-compiled.sh `. Please let me know if anything else is needed!

(Extracted from #20411)

Note that now compiled webpack has mkdirP function

I made an issue #[21330](https://github.com/vercel/next.js/issues/21330).

I think this line https://github.com/vercel/next.js/blob/0bd175264b000895cccd75f4499bdf55daad4882/packages/react-dev-overlay/src/internal/helpers/launchEditor.ts#L216 return string array and toLowerCase is undefined in string array so throw error.

I fixed it by referring to [launchEditor](https://github.com/facebook/create-react-app/blob/7e4949a20fc828577fb7626a3262832422f3ae3b/packages/react-dev-utils/launchEditor.js) of create react app.

#21279 

This is just a comment explaining that changing `pageExtensions` not only applies to `pages/*` but other files as well. 

- Add.type to variables and function, arguments

Added more detailed explanation of why there is no router instance, and other ways to fix the error

- Add return type to function
- Add [isNotValidData](https://github.com/vercel/next.js/pull/21148/files#diff-64466461287cc1a70ce5597e3e1d18ac22755f9aeb7ff1865160a8c057540983R374) function for readability

Fixes: https://github.com/vercel/next.js/issues/20370

> AsPath is incorrect on Server if you use rewrites and getInitialProps. On the server, asPath is the rewritten asPath while on the client asPath ist as given in the request URL.

The same issue was used to happen on `getServersideProps`, but it was fixed in this PR (https://github.com/vercel/next.js/pull/17121).
`getInitialProps` needs same fix except when the target is serverless, which has correct `asPath` value.

Additional tests have been added in the `getInitialProps` suite to ensure correct asPath with rewrites.

Co-authored-by: NJJ Kasper <jj@jjsweb.site>
Co-authored-by: NJoe Haddad <joe.haddad@zeit.co>

Allows building without permission to write to the application directory, useful for containers and sandboxes.

Co-authored-by: NTim Neutkens <tim@timneutkens.nl>
Co-authored-by: Nkodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

* add "title" as the source for "slug"

* Fix linting
Co-authored-by: NTim Neutkens <timneutkens@me.com>

Co-authored-by: NTim Neutkens <tim@timneutkens.nl>
Co-authored-by: NTim Neutkens <timneutkens@me.com>

Co-authored-by: NTim Neutkens <timneutkens@me.com>
Co-authored-by: Nkodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

Co-authored-by: NTim Neutkens <timneutkens@me.com>

Co-authored-by: Nkodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>