Update pack generator

Author: alexeyr

lib/react_on_rails/packs_generator.rb

@@ -107,7 +107,7 @@ def pack_file_contents(file_path)
       relative_component_path = relative_component_path_from_generated_pack(file_path)
 
       <<~FILE_CONTENT.strip
-        import ReactOnRails from 'react-on-rails';
+        import ReactOnRails from 'react-on-rails/client';
         import #{registered_component_name} from '#{relative_component_path}';
 
         ReactOnRails.register({#{registered_component_name}});

spec/dummy/spec/packs_generator_spec.rb

@@ -258,7 +258,7 @@ def self.configuration
           component_name = "ReactClientComponentWithClientAndServer"
           component_pack = "#{generated_directory}/#{component_name}.js"
           pack_content = File.read(component_pack)
-          expect(pack_content).to include("import ReactOnRails from 'react-on-rails';")
+          expect(pack_content).to include("import ReactOnRails from 'react-on-rails/client';")
           expect(pack_content).to include("ReactOnRails.register({#{component_name}});")
           expect(pack_content).not_to include("registerServerComponent")
         end
@@ -294,7 +294,7 @@ def self.configuration
           component_name = "ReactClientComponent"
           component_pack = "#{generated_directory}/#{component_name}.js"
           pack_content = File.read(component_pack)
-          expect(pack_content).to include("import ReactOnRails from 'react-on-rails';")
+          expect(pack_content).to include("import ReactOnRails from 'react-on-rails/client';")
           expect(pack_content).to include("ReactOnRails.register({#{component_name}});")
           expect(pack_content).not_to include("registerServerComponent")
         end
@@ -310,7 +310,7 @@ def self.configuration
           component_name = "ReactServerComponent"
           component_pack = "#{generated_directory}/#{component_name}.js"
           pack_content = File.read(component_pack)
-          expect(pack_content).to include("import ReactOnRails from 'react-on-rails';")
+          expect(pack_content).to include("import ReactOnRails from 'react-on-rails/client';")
           expect(pack_content).to include("ReactOnRails.register({#{component_name}});")
           expect(pack_content).not_to include("registerServerComponent")
         end
@@ -326,7 +326,7 @@ def self.configuration
           component_name = "ReactServerComponent"
           component_pack = "#{generated_directory}/#{component_name}.js"
           pack_content = File.read(component_pack)
-          expect(pack_content).to include("import ReactOnRails from 'react-on-rails';")
+          expect(pack_content).to include("import ReactOnRails from 'react-on-rails/client';")
           expect(pack_content).to include("ReactOnRails.register({#{component_name}});")
           expect(pack_content).not_to include("registerServerComponent")
         end