Lots of updates

src/utils/getCurrentTab.ts

@@ -0,0 +1,9 @@
+const getCurrentTab = (navigation: any) => {
+  const {
+    length,
+    [length - 1]: last
+  } = navigation.dangerouslyGetState().history
+  return `Screen-${last.key.split(new RegExp(/Screen-(.*?)-/))[1]}`
+}
+
+export default getCurrentTab