* feat: doctor command
* doctor: use console.warn for quickshell feature logs
* doctor: show compositor, quickshell and cli path in verbose
* doctor: show useful env variables
* doctor: indicate if config files are readonly
* doctor: add power-profiles-daemon and i2c
* doctor: cleanup code
* doctor: fix icon theme env variable
* doctor: use builtin config/cache dir functions
* doctor: refactor to use DoctorStatus struct and 'enum'
* doctor: use network backend detector