Add typing for Global type to include sessionStorage

Author: Paavan Bhavsar

globals.d.ts

@@ -0,0 +1,9 @@
+declare namespace NodeJS {
+  // By default, Typescript does not have sessionStorage on the Global type. We add it here.
+  interface Global {
+    sessionStorage: {
+      getItem: (key: string) => string
+      setItem: (key: string, value: string) => void
+    }
+  }
+}