Export BlitzProvider from blitz-next (#3513)

Co-authored-by: Aleksandra <[email protected]>

.changeset/nice-deers-dream.md

@@ -0,0 +1,5 @@
+---
+"@blitzjs/next": patch
+---
+
+Export BlitzProvider from @blitzjs/next

.github/CODEOWNERS

@@ -1,5 +1,5 @@
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
 
-* @beerose @dillonraphael
+* @flybayer @beerose @dillonraphael
 
 packages/generator/templates**/* @flybayer

packages/blitz-next/src/index-browser.tsx

@@ -85,14 +85,14 @@ export type BlitzLayout<P = {}> = React.ComponentType<P> & {
 export type AppProps<P = {}> = AppPropsType<Router, P> & {
   Component: BlitzPage
 }
-const BlitzProvider = ({
-  client,
+export const BlitzProvider = ({
+  client = globalThis.queryClient,
   contextSharing = false,
   dehydratedState,
   hydrateOptions,
   children,
 }: BlitzProviderProps) => {
-  if (globalThis.queryClient) {
+  if (client) {
     return (
       <QueryClientProvider
         client={client || globalThis.queryClient}