Refactor project file and update Whisper.net dependencies

Update console encoding and package dependencies

Update output extension and publish settings

Update target framework and upgrade FFmpeg packages

Enhance model handling and add ffmpeg integration

Merge branch 'main' of https://github.com/BigMakCode/SubtitleAI

Change whisper model

Update Readme.md

Add build and run instructions to Readme.md

Update Readme.md

Fix conversion errors

Merge branch 'main' of https://github.com/BigMakCode/SubtitleAI

Fix conversion errors

Update Readme.md

Move files and add Readme