feature: this commit introduces local storage keys constants

Author: https-richardy

UIs/Landing/constants/localstorage-constants.ts

@@ -0,0 +1,5 @@
+export default class LocalStorage {
+    public static readonly AccessToken = "comanda:access_token";
+    public static readonly RefreshToken = "comanda:refresh_token";
+    public static readonly Principal = "comanda:principal";
+}