feat: update error messages in locale files for better clarity and add markdown content type

Author: rsmithlal

config/locales/en.yml

@@ -503,8 +503,8 @@ en:
         seen_at: Seen at
     errors:
       messages:
-        file_not_found: 'file does not exist'
-        invalid_file_type: 'must be a markdown file (.md or .markdown)'
+        file_not_found: file does not exist
+        invalid_file_type: must be a markdown file (.md or .markdown)
         record_invalid: 'Validation failed: %{errors}'
         restrict_dependent_destroy:
           has_many: Cannot delete record because dependent %{record} exist

config/locales/es.yml

@@ -503,6 +503,8 @@ es:
         seen_at: Visto en
     errors:
       messages:
+        file_not_found: el archivo no existe
+        invalid_file_type: debe ser un archivo markdown (.md o .markdown)
         record_invalid: 'La validación falló: %{errors}'
         restrict_dependent_destroy:
           has_many: No se puede eliminar el registro porque existen %{record} dependientes
@@ -521,6 +523,7 @@ es:
       better_together/content/hero: Héroe
       better_together/content/html: HTML
       better_together/content/image: Imagen
+      better_together/content/markdown: Markdown
       better_together/content/page_block: Bloqueo de página
       better_together/content/rich_text: Texto enriquecido
       better_together/content/template: Archivo de plantilla

config/locales/fr.yml

@@ -503,6 +503,8 @@ fr:
         seen_at: Vu à
     errors:
       messages:
+        file_not_found: le fichier n'existe pas
+        invalid_file_type: doit être un fichier markdown (.md ou .markdown)
         record_invalid: 'La validation a échoué : %{errors}'
         restrict_dependent_destroy:
           has_many: Vous ne pouvez pas supprimer l'enregistrement parce que les %{record}
@@ -523,6 +525,7 @@ fr:
       better_together/content/hero: héros
       better_together/content/html: HTML
       better_together/content/image: image
+      better_together/content/markdown: Markdown
       better_together/content/page_block: blocage de pages
       better_together/content/rich_text: texte enrichi
       better_together/content/template: Template File

config/locales/uk.yml

@@ -503,6 +503,8 @@ uk:
         seen_at: Seen at
     errors:
       messages:
+        file_not_found: файл не існує
+        invalid_file_type: має бути файл markdown (.md або .markdown)
         record_invalid: 'Validation failed: %{errors}'
         restrict_dependent_destroy:
           has_many: Cannot delete record because dependent %{record} exist
@@ -521,6 +523,7 @@ uk:
       better_together/content/hero: Герой
       better_together/content/html: HTML
       better_together/content/image: Зображення
+      better_together/content/markdown: Markdown
       better_together/content/page_block: Блок сторінки
       better_together/content/rich_text: Багатий текст
       better_together/content/template: Файл шаблону