Branding, Theme Application and Navigation Utilities for 'bs4Dash' Dashboards // Provides branding, theme application, and navigation utilities for applications built with 'bs4Dash' and 'shiny'. Supports configurable sidebar brand display modes, hover-expand behavior, and theme customization using CSS variables. Includes complete navbar item helpers, navbar structure validation, reusable brand configuration, prototype top-navigation support, and helpers for common navigation bar and footer layouts.