Bug: two directories are created if sticker pack contains capital letters

[amozeo]

Issue Details

When sticker url contains capitalized letters, two directories are created in the download directory

• the name from the url - "containing" converted stickers
• decapitalized name - containing downloaded tgs and webp files

While directories are created, this bug also prevents converter backend converting tgs and webp files. I believe it's because converter looks for webp and tgs directories inside directory with decapitalized names.

Steps to reproduce

Run the following commands in order:

• tstickers -p https://t.me/addstickers/DonutTheDog
• ls downloads

Expected Behavior

only one directory, DonutTheDog, is present

Actual Behavior

two directories, DonutTheDog and donutthedog are present

System Information

• Operating System (OS): NixOS 24.05.git.d063c1dd113c (Uakari) x86_64
• Project Version: 2024.1.3