message: add infura id for staging
diff: 'use strict';
  +const infuraIdsByTarget = {
  + staging: '558ee533522a468e9d421d818e06fadb', // this infura id is specific to https://app-staging.stack.cards/
  +};
  +
  // eslint-disable-next-line no-undef
  module.exports = function (environment) {
  let ENV = {
  @@ -26,7 +30,8 @@ module.exports = function (environment) {
  layer1: process.env.LAYER_1_CHAIN || 'keth', // set to "eth" for production
  layer2: process.env.LAYER_2_CHAIN || 'sokol', // set to "xdai" for production,
  },
  - infuraId: process.env.INFURA_ID,
  + infuraId:
  + infuraIdsByTarget[process.env.DEPLOY_TARGET] ?? process.env.INFURA_ID,
  urls: {
  appStoreLink: undefined,
  googlePlayStoreLink: undefined,
  