May update

• Add preferences to customize the search engine URL thanks to @leandrotlz (PR #286)
• Add build and CLI options to enable or disable native PipeWire support (issue #297)
• Disable native PipeWire support in the Flatpak build in an attempt to prevent Furiphone-related issues (#276, #296)
• Update Occitan translation thanks to @Mejans
• Update Turkish translation thanks to @Abrifq
• Update Brazilian translation thanks to @marcelocripe
• Update Slovak translation thanks to @dodog
• Update dependencies and cross-platform building process
• Optimize and refactor Rust code thanks to @linkmauve
• Make the .desktop file and Flathub description translatable
• Improve audio capture-related debugging and error handling
• Bump CPAL development version to current upstream