fix: add updatedAt variable to the article template to get the last u… (

#183)

* fix: add updatedAt variable to the article template to get the last updated timestamp of the library item (#176)

* fix: allow using image in the basic front matter settings (#187)

src/settings/index.ts

@@ -17,6 +17,7 @@ export const FRONT_MATTER_VARIABLES = [
   'read_length',
   'state',
   'date_archived',
+  'image'
 ]
 
 export const DEFAULT_SETTINGS: OmnivoreSettings = {

src/settings/template.ts

@@ -77,6 +77,7 @@ export type ArticleView =
       state: string
       dateArchived?: string
       image?: string
+      updatedAt: string
     }
   | FunctionMap
 
@@ -252,6 +253,7 @@ export const renderArticleContnet = async (
     state: getArticleState(article),
     dateArchived: article.archivedAt,
     image: article.image,
+    updatedAt: article.updatedAt,
     ...functionMap,
   }