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.dart

@@ -2518,6 +2518,30 @@ abstract class AppLocalizations {
   /// **'Manage Repeater'**
   String get map_manageRepeater;
 
+  /// No description provided for @map_tapToAdd.
+  ///
+  /// In en, this message translates to:
+  /// **'Tap on nodes to add them to the path.'**
+  String get map_tapToAdd;
+
+  /// No description provided for @map_runTrace.
+  ///
+  /// In en, this message translates to:
+  /// **'Run Path Trace'**
+  String get map_runTrace;
+
+  /// No description provided for @map_removeLast.
+  ///
+  /// In en, this message translates to:
+  /// **'Remove Last'**
+  String get map_removeLast;
+
+  /// No description provided for @map_pathTraceCancelled.
+  ///
+  /// In en, this message translates to:
+  /// **'Path trace cancelled.'**
+  String get map_pathTraceCancelled;
+
   /// No description provided for @mapCache_title.
   ///
   /// In en, this message translates to:
@@ -4730,6 +4754,12 @@ abstract class AppLocalizations {
   /// **'One or more of the hops is missing a location!'**
   String get pathTrace_someHopsNoLocation;
 
+  /// No description provided for @pathTrace_clearTooltip.
+  ///
+  /// In en, this message translates to:
+  /// **'Clear path.'**
+  String get pathTrace_clearTooltip;
+
   /// No description provided for @contacts_pathTrace.
   ///
   /// In en, this message translates to: