FIX get readme file bug

(cherry picked from commit 30138cc1fa)

app/views/repositories/_simple_entry.json.jbuilder

@@ -8,12 +8,13 @@ if @project.forge?
   json.path entry['path']
   json.type entry['type']
   json.size entry['size']
-  json.content entry['content'].present? && !direct_download ? render_decode64_content(entry['content']) : ""
+
+  json.content decode64_content(entry, @owner, @repository, @ref)
   json.target entry['target']
   json.download_url entry['download_url']
   json.direct_download direct_download
   json.image_type image_type
-  json.is_readme_file is_readme_type?(file_name)
+  json.is_readme_file is_readme?(entry['type'], entry['name'])
   if entry['latest_commit']
     if entry['type'] != 'file'
       json.partial! 'last_commit', entry: entry

app/views/repositories/entries.json.jbuilder

@@ -51,17 +51,8 @@ if @project.forge?
       json.sha entry['sha']
       json.type entry['type']
       json.size entry['size']
-      content =
-        if is_readme_type?(entry['name'])
-          is_readme_file = true
-          content = Gitea::Repository::Entries::GetService.call(@owner, @project.identifier, entry['name'], ref: @ref)['content']
-          readme_render_decode64_content(content, @path)
-        else
-          is_readme_file = false
-          entry['content']
-        end
-      json.is_readme_file is_readme_file
-      json.content content
+      json.is_readme_file is_readme?(entry['type'], entry['name'])
+      json.content decode64_content(entry, @owner, @repository, @ref, @path)
       json.target entry['target']
       if entry['latest_commit']
         json.partial! 'last_commit', entry: entry