Feat: email notifications (#3007)

* Feat: email notifications / email db backup

Because not using a simple smtp connection is silly

* Added form

* broken, and annoying bug

Why wont the input display?!?!?

* make

* Encourage protonmail use, because its great.

* feat: small UI polishing

* chore: make bundle

---------

Co-authored-by: Vlad Stan <stan.v.vlad@gmail.com>

lnbits/static/js/admin.js

@@ -53,8 +53,10 @@ window.AdminPageLogic = {
       chartReady: false,
       formAddAdmin: '',
       formAddUser: '',
+      hideInputToggle: true,
       formAddExtensionsManifest: '',
       nostrNotificationIdentifier: '',
+      emailNotificationAddress: '',
       formAllowedIPs: '',
       formCallbackUrlRule: '',
       formBlockedIPs: '',
@@ -270,6 +272,23 @@ window.AdminPageLogic = {
         m => m !== identifer
       )
     },
+    addEmailNotificationAddress() {
+      const email = this.emailNotificationAddress.trim()
+      const emails = this.formData.lnbits_email_notifications_to_emails
+      if (email && email.length && !emails.includes(email)) {
+        this.formData.lnbits_email_notifications_to_emails = [...emails, email]
+        this.emailNotificationAddress = ''
+      }
+    },
+    removeEmailNotificationAddress(email) {
+      const emails = this.formData.lnbits_email_notifications_to_emails
+      this.formData.lnbits_email_notifications_to_emails = emails.filter(
+        m => m !== email
+      )
+    },
+    hideInputsToggle() {
+      this.hideInputToggle = !this.hideInputToggle
+    },
     async toggleServerLog() {
       this.serverlogEnabled = !this.serverlogEnabled
       if (this.serverlogEnabled) {