Include widgets.js on blog posts that need it

Fixes #78

config/default/field.storage.node.field_has_tweet.yml

@@ -0,0 +1,18 @@
+uuid: f0ab9755-e7d4-4b86-b4f5-df0472c727dd
+langcode: en
+status: true
+dependencies:
+  module:
+    - node
+id: node.field_has_tweet
+field_name: field_has_tweet
+entity_type: node
+type: boolean
+settings: {  }
+module: core
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false