Split index into astro+session.

@@ -2,10 +2,11 @@
   "name": "astro-redux",
   "type": "module",
   "exports": {
-    ".": "./src/index.mjs",
+    "./astro": "./src/astro.mjs",
     "./client": "./src/client.mjs",
     "./slices": "./src/slices.mjs",
     "./react": "./src/react.jsx",
+    "./session": "./src/session.jsx",
     "./ReduxIsland": "./src/ReduxIsland.astro"
   },
   "sideEffects": [

-import NodeCache from 'node-cache'
-import { configureStore } from '@reduxjs/toolkit'
-
 export const makeLeadingCase = (s) => s.substring(0, 1).toUpperCase() + s.substring(1)
 
 export const fixUnsubscribe = async (store, action) => {
@@ -41,21 +38,4 @@ export const createAstroApiWrappers = (apiWrappers) => Object.entries(apiWrapper
   return result
 }, {})
 
-export const sessionStoreCache = new NodeCache({
-  stdTTL: 600,    // in seconds
-  useClones: false,
-})
-
-export const createGetSessionStore = (storeConfig) => (session) => {
-  const getStore = (sessionId) => {
-    const currentStore = sessionStoreCache.get(sessionId)
-    if (currentStore) return currentStore
-    const newStore = configureStore(storeConfig)
-    sessionStoreCache.set(sessionId, newStore)
-    return newStore
-  }
-  const { id: sessionId } = session
-  return getStore(sessionId)
-}
-
 export { default as AstroReduxProvider } from './Provider.astro'

+import NodeCache from 'node-cache'
+import { configureStore } from '@reduxjs/toolkit'
+
+export const sessionStoreCache = new NodeCache({
+  stdTTL: 600,    // in seconds
+  useClones: false,
+})
+
+export const createGetSessionStore = (storeConfig) => (session) => {
+  const getStore = (sessionId) => {
+    const currentStore = sessionStoreCache.get(sessionId)
+    if (currentStore) return currentStore
+    const newStore = configureStore(storeConfig)
+    sessionStoreCache.set(sessionId, newStore)
+    return newStore
+  }
+  const { id: sessionId } = session
+  return getStore(sessionId)
+}
+