xinitrc: fix indentation

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
bashrc: add two new aliases

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>
volumeicon: always select master channel

Signed-off-by: Niklas Koep <niklas.koep@gmail.com>