[feat] UI for user notifications (#3267)

lnbits/static/js/account.js

@@ -80,6 +80,11 @@ window.AccountPageLogic = {
         token_id_list: [],
         allRead: false,
         allWrite: false
+      },
+      notifications: {
+        nostr: {
+          identifier: ''
+        }
       }
     }
   },
@@ -394,8 +399,35 @@ window.AccountPageLogic = {
       } finally {
         this.apiAcl.password = ''
       }
+    },
+    addNostrNotificationIdentifier() {
+      const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
+      if (!emailRegex.test(this.notifications.nostr.identifier)) {
+        Quasar.Notify.create({
+          type: 'warning',
+          message: 'Invalid email format.'
+        })
+        return
+      }
+      const identifier = this.user.extra.nostr_notification_identifiers.find(
+        i => i === this.notifications.nostr.identifier
+      )
+      if (identifier) {
+        return
+      }
+      this.user.extra.nostr_notification_identifiers.push(
+        this.notifications.nostr.identifier
+      )
+      this.notifications.nostr.identifier = ''
+    },
+    removeNostrNotificationIdentifier(identifier) {
+      this.user.extra.nostr_notification_identifiers =
+        this.user.extra.nostr_notification_identifiers.filter(
+          i => i !== identifier
+        )
     }
   },
+
   async created() {
     try {
       const {data} = await LNbits.api.getAuthenticatedUser()