FIX (databases): If some DB missing PostgreSQL db fix nil issue

Author: RostislavDugin

backend/internal/features/databases/model.go

@@ -61,7 +61,10 @@ func (d *Database) TestConnection(logger *slog.Logger) error {
 }
 
 func (d *Database) HideSensitiveData() {
-	d.getSpecificDatabase().HideSensitiveData()
+	specificDB := d.getSpecificDatabase()
+	if specificDB != nil {
+		specificDB.HideSensitiveData()
+	}
 }
 
 func (d *Database) Update(incoming *Database) {

frontend/src/features/notifiers/ui/edit/notifiers/EditEmailNotifierComponent.tsx

@@ -108,6 +108,7 @@ export function EditEmailNotifierComponent({ notifier, setNotifier, setIsUnsaved
       <div className="mb-1 flex items-center">
         <div className="w-[130px] min-w-[130px]">SMTP password</div>
         <Input
+          type="password"
           value={notifier?.emailNotifier?.smtpPassword || ''}
           onChange={(e) => {
             if (!notifier?.emailNotifier) return;