next 8.1.1-canary.29

Demonstrate how to use kea actions in getInitialProps for server side rendering with state transferred to client-side: #7298
Fix:7271 with-rematch - make sever rendered user list persist: #7308
Fix POST and PUT on api routes: #7319
Update the with-graphql-react example.: #7317
Redesigned page output: #7324
Fix windows backslashes not being replaced when identifying AMP pages: #7331
Update with-styletron example, add debug mode and useStyletron: #7290
Update typescript example to reflects out of box usage: #7235
Fix error overlay dismiss after fixing build error: #7335
Remove allowSyntheticDefaultImports in favor of esModuleInterop: #7338

Huge thanks to @AnsonT, @nataliemarleny, @huv1k, @jaydenseric, @Timer, @tajo, and @resir014 for helping!