Checking the fields selector array length in a better way

src/includes/public/resources/detail.pug

@@ -20,7 +20,7 @@
             header_specifications, resource_author, country.name, languages,\
             publication_year, fields, sharing)',
 
-    widget-submitter='cs-display-user-link',
+    widget-submitter='hidden-widget',
     class-name="title_form"
     class-steps="steps"
     widget-resource_author='cs-display-resource-property',
@@ -35,11 +35,11 @@
     widget-name='cs-display-property'
     widget-publication_year='cs-display-resource-property'
     widget-sharing='cs-display-sharing'
-    widget-submitter.account.picture='cs-account-picture'
+    widget-submitter.account.picture='hidden-widget'
     widget-broken='cs-broken-action'
     widget-preview_image='cs-preview-picture'
-    widget-review.reviewer.account.picture='cs-account-picture'
-    widget-review.reviewer='cs-display-user-link'
+    widget-review.reviewer.account.picture='hidden-widget'
+    widget-review.reviewer='hidden-widget'
     class-review.reviewer="validator_ressource"
     widget-header_specifications='cs-section_header'
     widget-iframe_link='iframe-video-resource'