Update Kapitanbooru Uploader to version 0.9.0 with significant changes

- Updated version number in pyproject.toml and messages.po files.
- Added new translations and updated existing ones in messages.po for better localization.
- Implemented core functionality in Core.py, including image processing, tagging, and upload logic.
- Enhanced the autotagging feature to support multiple image formats (PNG, JPEG, WebP, AVIF, GIF).
- Improved error handling and logging for file operations and network requests.
- Added functionality to check for uploaded files and manage tag updates for existing posts.
- Introduced threading for background processing to improve application responsiveness.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "kapitanbooru-uploader"
-version = "0.8.3"
+version = "0.9.0"
 description = "A GUI application for uploading images to KapitanBooru"
 authors = [{ name = "Michał Leśniak", email = "kapitan@mlesniak.pl" }]
 dependencies = [