feat: 🎸 add epic plugin implementation

src/plugins/epic.js

@@ -0,0 +1,24 @@
+const plugin = (epic) => store => {
+  const observable = (observer) => {
+    const dispatch = store.dispatch
+    let live = true
+
+    store.dispatch = (action) => {
+      dispatch(action)
+
+      if (live) {
+        observer.next(action)
+      }
+    }
+
+    const unsubscribe = () => {
+      live = false
+    }
+
+    return unsubscribe
+  }
+
+  epic(observable)(store.dispatch)
+}
+
+export default plugin