feat: add navigation primitive to example config

examples/gui_adapter/planning_configuration.json

@@ -85,6 +85,23 @@
             ]
           }
         }
+      },
+      {
+        "instruction": "navigate_to",
+        "feature": {
+          "type": "Feature",
+          "properties": {
+            "name": "Target a",
+            "type": "target"
+          },
+          "geometry": {
+            "type": "Point", 
+            "coordinates": [
+              -4.183181,
+              50.335942
+            ]
+          }
+        }
       }
     ],   
     "squads": [