* Añadiendo algunos cambios iniciales para probar OPDS
* Add suport to OPDS v1.2
* Added support for OPDS-PSE and reorganized controllers
* Rename chapterIndex to chapterId in the API and controller, and update descriptions in OPDS
* Refactor OPDS to use formatted timestamps and proxy thumbnail URLs
* Refactor OPDS to use formatted timestamps and proxy thumbnail URLs
* Update Manga API to download chapters cbz using only chapterId and improve chapter download query
* Optimize OPDS queries
* Update Manga API to download chapters cbz using only chapterId and improve chapter download query
* Optimize OPDS queries
* Use SourceDataClass to map sources and optimize thumbnail URL retrieval
* Kotlin lint errors in ChapterDownloadHelper and Opds
* Kotlin lint errors in ChapterDownloadHelper and Opds
