New UI / performance improvements / bugfix [2.3]

UI

• new GUI in line with windows 11 UI
• redesigned buttons
• new CLEAR button to clean the given image or video

IMPROVEMENTS / BUGFIX

• redesigned how the app interact with images and video when upscaling (fix the bug that sometimes when upscaling multiple times, the app reported the old upscaling job)
• the app will use image and video in .jpg instead of .png (boosting speed and space required by ~10%)
• refactored code for redability and speed improvements
• updated all libraries