Refactor SAR marker handling and add template management

- Updated CompassSarList and DetailedCompassDialog to use marker.displayName instead of marker.type.displayName.
- Enhanced DrawingLayer and DrawingMarkersLayer to support simple mode for drawing visibility and interaction.
- Added toggle switches in DrawingToolbar for showing/hiding received drawings and SAR markers.
- Modified MapMarkers to utilize custom emojis and display names for markers.
- Introduced RecipientSelectorSheet for selecting message recipients with search functionality.
- Refactored SarUpdateSheet to use SAR templates instead of marker types, allowing for emoji and name customization.
- Created SarTemplateEditDialog for adding and editing SAR templates with color selection and preview.

lib/widgets/map/drawing_toolbar.dart

@@ -201,6 +201,43 @@ class DrawingToolbar extends StatelessWidget {
                 drawingProvider.setDrawingMode(DrawingMode.rectangle);
               },
             ),
+            const Divider(),
+            // Toggle received drawings visibility
+            SwitchListTile(
+              secondary: Icon(
+                drawingProvider.showReceivedDrawings
+                    ? Icons.visibility
+                    : Icons.visibility_off,
+              ),
+              title: Text(AppLocalizations.of(context)!.showReceivedDrawings),
+              subtitle: Text(
+                drawingProvider.showReceivedDrawings
+                    ? AppLocalizations.of(context)!.showingAllDrawings
+                    : AppLocalizations.of(context)!.showingOnlyYourDrawings,
+              ),
+              value: drawingProvider.showReceivedDrawings,
+              onChanged: (value) {
+                drawingProvider.toggleReceivedDrawings();
+              },
+            ),
+            // Toggle SAR markers visibility
+            SwitchListTile(
+              secondary: Icon(
+                drawingProvider.showSarMarkers
+                    ? Icons.pin_drop
+                    : Icons.pin_drop_outlined,
+              ),
+              title: Text(AppLocalizations.of(context)!.showSarMarkers),
+              subtitle: Text(
+                drawingProvider.showSarMarkers
+                    ? AppLocalizations.of(context)!.showingSarMarkers
+                    : AppLocalizations.of(context)!.hidingSarMarkers,
+              ),
+              value: drawingProvider.showSarMarkers,
+              onChanged: (value) {
+                drawingProvider.toggleSarMarkers();
+              },
+            ),
             if (drawingProvider.drawings.isNotEmpty) ...[
               const Divider(),
               ListTile(