Add path tracing functionality (#165)

- Implemented path tracing feature in the map screen, allowing users to add nodes to a path and visualize it on the map.
- Added buttons for starting path tracing, removing the last node, and running the path trace.
- Introduced a new overlay to display current path information and distance.
- Updated localization files for multiple languages to include new strings related to path tracing.
- Refactored map rendering logic to accommodate path tracing visuals.

lib/l10n/app_localizations_es.dart

@@ -1360,6 +1360,18 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get map_manageRepeater => 'Gestionar Repetidor';
 
+  @override
+  String get map_tapToAdd => 'Pulse en los nodos para agregarlos al camino.';
+
+  @override
+  String get map_runTrace => 'Ejecutar Rastreo de Ruta';
+
+  @override
+  String get map_removeLast => 'Eliminar último';
+
+  @override
+  String get map_pathTraceCancelled => 'Rastreo de ruta cancelado.';
+
   @override
   String get mapCache_title => 'Caché de Mapa Offline';
 
@@ -2698,6 +2710,9 @@ class AppLocalizationsEs extends AppLocalizations {
   String get pathTrace_someHopsNoLocation =>
       'Uno o más de los lúpulos carecen de una ubicación';
 
+  @override
+  String get pathTrace_clearTooltip => 'Borrar ruta';
+
   @override
   String get contacts_pathTrace => 'Rastreo de caminos';