Feat/offline maps (#812)

* feat: Enhance configuration documentation and integrate OTP routing in HomeScreen and TransportList

* feat: Update OTP endpoint and add new map engine configurations

* feat: Add offline map support with OfflineMapLibreEngine

- Introduced OfflineMapLibreEngine for fully offline maps using local mbtiles and style files.
- Updated main.dart to conditionally include OfflineMapLibreEngine based on platform (disabled on web).
- Modified pubspec.yaml to include new asset paths for offline maps and fonts.
- Added necessary dependencies for path_provider to manage offline assets.
- Enhanced map engine exports to include the new offline engine.

* feat: Implement GTFS parsing and routing services

- Add GtfsParser for parsing GTFS data from ZIP files.
- Create GtfsRoutingService for finding routes using GTFS data.
- Introduce RoutingSegment and RoutingPath classes for managing routing segments and paths.
- Implement Otp15, Otp24, and Otp28 routing providers for OpenTripPlanner.
- Add IRoutingProvider interface for custom routing providers.
- Create RoutingConfiguration and RoutingEngineManager for managing routing providers.
- Update pubspec.yaml to include the archive package for ZIP file handling.

* feat: Enhance transport detail screen with routing engine integration

- Added `showWithRoutingEngine` method to `TransportDetailScreen` for simplified route detail display using the routing engine.
- Implemented `_RouteMapView` to visualize transport routes on a map, including stop markers and route lines.
- Updated loading behavior in `TransportDetailScreen` to show loading state only if data retrieval takes longer than 200ms.

refactor: Improve transport list screen routing logic

- Refactored routing engine retrieval in `TransportListTrufiScreen` to ensure proper handling of transit route repositories.
- Introduced `providerId` to track the current routing engine.

fix: Ensure markers are always visible on the map

- Modified `_RouteLayer` to always display origin and destination markers, regardless of selection state.
- Adjusted marker sizes and styles for better visibility.

chore: Implement engine initialization for map and routing providers

- Added `initialize` method to various routing providers and map engines to prepare resources during app startup.
- Updated `RoutingEngineManager` and `MapEngineManager` to include engine initialization logic.

style: Update transport tile display logic

- Enhanced `TransportTile` to dynamically show primary and secondary text based on route information.

chore: Update dependencies in pubspec.yaml

- Added `flutter_bloc` dependency to `trufi_core_routing`.
- Updated dependencies in `trufi_core_ui` to include `trufi_core_maps` and `trufi_core_routing`.

* feat: Refactor overlay management to use OverlayManager and update app configuration

* feat: Enhance GTFS data handling and app initialization with isolate support

* feat: Refactor app initialization with custom screen support and improved error handling

* feat: Enhance app initialization with customizable theme and loading screen animations

* feat: Add support for multiple OTP routing providers and enhance routing settings UI

* feat: Implement long press handling for web in TrufiMapLibreMap

* feat: Simplify TransportDetailScreen invocation and enhance route handling in itinerary details

* feat: Add OTP 1.5 TransitRouteRepository implementation and update routing provider to support transit routes

* feat: Refactor TransportDetailScreen and TransportListTrufiScreen for improved routing and map handling

Author: SamuelRioTz