V1.9.1 - Fixes + Crop individual frames is now optional

What's new

• Tweak: Crop individual frames is no longer automatic, added a checkbox to let users decide
• Tweak: Default Minimum Duration changed from 500 to 0
• Bugfix: Fix spritesheet_settings not being cleared for a specific sheet
• Bugfix: Windows users with ImageMagick already installed had an issue where the paths clashed, now we're checking if it's already in path

The last bugfix will currently open a Command Prompt window that will instantly close, this is just because it does the check wheter to use a pre-existing install of ImageMagick or use the one bundled with the application. I know it might look scary but bear with it for the time being until a better solution has been added 🙏

Merge pull request #13 from Jsfasdf250/main
Merge pull request #11 from Jsfasdf250/main
Thanks @Jsfasdf250!

See README for more information about current functionality and what's to be added:
https://github.com/MeguminBOT/TextureAtlas-to-GIF-and-Frames/blob/main/README.md