Issue with some characters

Noticed this when uploading a Pokemon ROM, the searches find it with the spelling "Pokémon" and that's how it writes the YAML file, but the web server doesn't seem to handle the "é" character cleanly and the resulting new entry produces an error 400 when trying to access it, "Sorry, the requested URL 'http://192.168.1.113/library/gba/edit/Pok%C3%A9mon%20Pinball' caused an error: Invalid path string. Expected UTF-8."

The YAML file has it formatted as home/gamer/.local/share/chimera/images/poster/gba/Pok\xE9mon Pinball.png

Start by reproducing the Pokémon ROM upload and search flow, then inspect how the YAML path and web-server URL handle the é character. Done means the generated Pokémon Pinball entry can be opened and edited without the 400 Invalid path string error.

Written by the indexing model from the issue text.