Add BSU library page. Must include search, downloading and open options

[geugenm]

This issue pertains to the development and integration of a new page for the BSU library within our project. The primary functionalities required on this page include:

• Search Functionality: Users should be able to search for specific resources within the library.
• Download Option: Users should have the ability to download resources directly from the library.
• Open Option: Users should be able to open and view the resources directly from the library.

The reference for the library login page is https://elib.bsu.by/ldap-login.

The implementation of this feature should consider both usability and efficiency, ensuring that users can easily navigate and access the resources they need. It's also important to ensure the security and integrity of the resources during the download and open processes.