Add textdomain to block js strings and Update test accordingly

Author: thrijith

features/scaffold-block.feature

@@ -65,19 +65,19 @@ Feature: WordPress block code scaffolding
       """
     And the {PLUGIN_DIR}/blocks/the-green-mile/index.js file should contain:
       """
-      title: __( 'The green mile' ),
+      title: __( 'The green mile', 'movies' ),
       """
     And the {PLUGIN_DIR}/blocks/the-green-mile/index.js file should contain:
       """
       category: 'widgets',
       """
     And the {PLUGIN_DIR}/blocks/the-green-mile/index.js file should contain:
       """
-      __( 'Hello from the editor!' )
+      __( 'Hello from the editor!', 'movies' )
       """
     And the {PLUGIN_DIR}/blocks/the-green-mile/index.js file should contain:
       """
-      __( 'Hello from the saved content!' )
+      __( 'Hello from the saved content!', 'movies' )
       """
     And the {PLUGIN_DIR}/blocks/the-green-mile/editor.css file should exist
     And the {PLUGIN_DIR}/blocks/the-green-mile/editor.css file should contain:
@@ -98,7 +98,7 @@ Feature: WordPress block code scaffolding
     When I run `wp scaffold block shawshank-redemption --plugin=movies --title="The Shawshank Redemption"`
     Then the {PLUGIN_DIR}/blocks/shawshank-redemption/index.js file should contain:
       """
-      title: __( 'The Shawshank Redemption' ),
+      title: __( 'The Shawshank Redemption', 'movies' ),
       """
     And STDOUT should be:
       """

templates/block-index-js.mustache

@@ -24,7 +24,7 @@
 		 * This is the display title for your block, which can be translated with `i18n` functions.
 		 * The block inserter will show this name.
 		 */
-		title: __( '{{title_ucfirst_js}}' ),
+		title: __( '{{title_ucfirst_js}}', '{{namespace}}' ),
 
 		{{#dashicon}}
 		/**
@@ -60,7 +60,7 @@
 			return el(
 				'p',
 				{ className: props.className },
-				__( 'Hello from the editor!' )
+				__( 'Hello from the editor!', '{{namespace}}' )
 			);
 		},
 
@@ -75,7 +75,7 @@
 			return el(
 				'p',
 				{},
-				__( 'Hello from the saved content!' )
+				__( 'Hello from the saved content!', '{{namespace}}' )
 			);
 		}
 	} );