Fixing default devtools export

[civancza]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch unistore@3.5.2 for the project I'm working on.

Here is the diff that solved my problem:

diff --git a/node_modules/unistore/devtools.js b/node_modules/unistore/devtools.js
index 6c6b2f1..33143de 100644
--- a/node_modules/unistore/devtools.js
+++ b/node_modules/unistore/devtools.js
@@ -1,6 +1,6 @@
-module.exports = function unistoreDevTools(store) {
-	var extension = window.__REDUX_DEVTOOLS_EXTENSION__ || window.top.__REDUX_DEVTOOLS_EXTENSION__;
-	var ignoreState = false;
+function unistoreDevTools(store) {
+	const extension = window.__REDUX_DEVTOOLS_EXTENSION__ || window.top.__REDUX_DEVTOOLS_EXTENSION__;
+	const ignoreState = false;
 
 	if (!extension) {
 		console.warn('Please install/enable Redux devtools extension');
@@ -19,7 +19,7 @@ module.exports = function unistoreDevTools(store) {
 		});
 		store.devtools.init(store.getState());
 		store.subscribe(function (state, action) {
-			var actionName = action && action.name || 'setState';
+			const actionName = action && action.name || 'setState';
 
 			if (!ignoreState) {
 				store.devtools.send(actionName, state);
@@ -31,3 +31,5 @@ module.exports = function unistoreDevTools(store) {
 
 	return store;
 }
+
+export default unistoreDevTools;

This issue body was partially generated by patch-package.