add missing file to the gem

decidim-navigation_maps.gemspec

@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.summary = "A decidim navigation_maps module"
   s.description = "Allows to create visual guiding maps in content blocks for Decidim."
 
-  s.files = Dir["{app,config,lib,vendor,db}/**/*", "LICENSE-AGPLv3.txt", "Rakefile", "README.md"]
+  s.files = Dir["{app,config,lib,db}/**/*", "LICENSE-AGPLv3.txt", "Rakefile", "package.json", "README.md"]
 
   s.add_dependency "decidim-admin", Decidim::NavigationMaps::DECIDIM_VERSION
   s.add_dependency "decidim-core", Decidim::NavigationMaps::DECIDIM_VERSION

lib/decidim/navigation_maps/version.rb

@@ -3,7 +3,7 @@
 module Decidim
   # This holds the decidim-meetings version.
   module NavigationMaps
-    VERSION = "1.3.0"
+    VERSION = "1.3.1"
     DECIDIM_VERSION = [">= 0.25", "< 0.27"].freeze
   end
 end