docs: added readme

feat: payment screen

fix: menu customer resp

feat: added empty info if cart has no items

fix: possible unhandled promise rejection

Merge pull request #3 from JuanGabriel2960/config-menu-context

feat: added menu & cart context

feat: get menu

Merge pull request #2 from JuanGabriel2960/config-auth

feat: register reducer & loading screen

feat: added login reducer

feat: added initial auth context

feat: added login stack navigation

Merge pull request #1 from JuanGabriel2960/config-main

feat: config order page design