fix: logout on safari (#2971)

lnbits/static/js/index.js

@@ -177,6 +177,7 @@ window.app = Vue.createApp({
   created() {
     this.description = SITE_DESCRIPTION
     this.isUserAuthorized = !!this.$q.cookies.get('is_lnbits_user_authorized')
+    const _acccess_cookies_for_safari_refresh_do_not_delete = document.cookie
     if (this.isUserAuthorized) {
       window.location.href = '/wallet'
     }

lnbits/static/js/wallet.js

@@ -801,7 +801,7 @@ window.WalletPageLogic = {
     },
     createdTasks() {
       this.update.name = this.g.wallet.name
-      this.receive.units = ['sat', ...window.currencies]
+      this.receive.units = ['sat', ...(window.currencies || [])]
       if (this.g.wallet.currency != '') {
         this.g.fiatTracking = true
         this.updateFiatBalance(this.g.wallet.currency)