Integrate a Leaflet-based MapView into the editor UI: load Leaflet CSS/JS resources, add a MapView React component (initializes map, OpenStreetMap tiles, cleanup on unmount, and calls invalidateSize when shown), and wire a new Map button into the ribbon to toggle map visibility. Add show/hide handling for the Editor component (toggle display via a visible prop) and manage map/editor layout by rendering them side-by-side and toggling display. Rename Azure AI references to Azure Cognitive (handler and button id/label) and update related prop names. Minor resource list and styling updates for layout and dependencies.
