Changes shell spawn flags from -l to -il so that ~/.zshrc and
~/.bashrc are sourced when starting the desktop app on macOS
and Linux. This fixes missing PATH and other environment
variables that users expect to be available.
- Add appimage target back to tauri.conf.json
- Force reinstall tauri-cli from feat/truly-portable-appimage branch
- Add 10 minute timeout to prevent indefinite hangs
- Add logging to verify correct tauri-cli version is installed
This fixes the issue where AppImage builds would hang at 'Running input plugin: gtk' by using the new portable appimage format that bypasses linuxdeploy entirely.