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_pl.dart

@@ -1361,6 +1361,18 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get map_manageRepeater => 'Zarządzaj Powtórzami';
 
+  @override
+  String get map_tapToAdd => 'Kliknij na węzły, aby dodać je do ścieżki.';
+
+  @override
+  String get map_runTrace => 'Uruchom ślad ścieżki';
+
+  @override
+  String get map_removeLast => 'Usuń ostatni';
+
+  @override
+  String get map_pathTraceCancelled => 'Śledzenie ścieżki anulowano.';
+
   @override
   String get mapCache_title => 'Bufor Map Offline';
 
@@ -2697,6 +2709,9 @@ class AppLocalizationsPl extends AppLocalizations {
   String get pathTrace_someHopsNoLocation =>
       'Jeden lub więcej z chmieli nie ma określonej lokalizacji!';
 
+  @override
+  String get pathTrace_clearTooltip => 'Wyczyść ścieżkę';
+
   @override
   String get contacts_pathTrace => 'Śledzenie Ścieżek';