Introduces SMTP configuration settings and alert definitions to enable automated email notifications.
This includes new types for `SmtpConfig` and `AlertDefinition`, and integrates these into the settings page and mock database.
Adds styling for select elements and scrollbar hiding in the main HTML.
Updates mock database logic to potentially support local development without a backend.
Initializes the Condopay frontend project using Vite, React, and TypeScript. Includes basic project structure, dependencies, and configuration for Tailwind CSS and React Router.
