[mob] sync person entity type

mobile/lib/models/api/entity/type.dart

@@ -2,6 +2,7 @@ import "package:flutter/foundation.dart";
 
 enum EntityType {
   location,
+  person,
   unknown,
 }
 
@@ -9,6 +10,8 @@ EntityType typeFromString(String type) {
   switch (type) {
     case "location":
       return EntityType.location;
+    case "person":
+      return EntityType.location;
   }
   debugPrint("unexpected collection type $type");
   return EntityType.unknown;
@@ -19,6 +22,8 @@ extension EntityTypeExtn on EntityType {
     switch (this) {
       case EntityType.location:
         return "location";
+      case EntityType.person:
+        return "person";
       case EntityType.unknown:
         return "unknown";
     }