A configuration option related to payroll accounting is now shown correctly when payroll and accounting are installed on their own. This helps businesses access the expected setup options without needing additional applications or workarounds.

If payroll and accounting are installed standalone, the application_group is never made visible

task-5160204

Forward-Port-Of: odoo/enterprise#96875

PDF attachments marked with an alternate PDF label are now correctly detected by the AI attachment processing flow. This prevents valid PDF files from being skipped or handled incorrectly, improving reliability for users working with uploaded documents.

## FIX
 
Extend the PDF detection condition in `_get_attachment_content` to handle attachments with mimetype 'application/pdf;base64' in addition to 'application/pdf'.

Forward-Port-Of: odoo/enterprise#96654