Svelte 5 update, edits to the admin panel

Updated the content editor, modules translated to Svelte 5, very satisfied with the collaboration, always good communication, tasks completed clearly and high quality, I recommend the performer!

Yaroslav Rudenok is a client who is pleasant to work with. He always listens carefully to the performers and takes their suggestions and comments into account. The tasks were clearly formulated, and the requirements were justified and adequate. Payment has always been timely, which is very important for comfortable cooperation. Yaroslav has always been in touch and ready to help with any questions that arose during the work on the project. I recommend him as a reliable and responsible client.