Add nohup convenience alias

This alias removes any output which would be generated. By default,
`nohup` generates a `nohup.out` file in the cwd or home directory with
the output from the executed program. Most of the time I don't need to
monitor the program's output, and when I do, I can easily run `\nohup
<program>` to circumvent this alias.

src/.bashrc

@@ -97,6 +97,7 @@ alias ip='ip --color=auto'
 alias tree='tree -Csuh'
 alias ffmpeg='ffmpeg -hide_banner'
 alias ffprobe='ffprobe -hide_banner'
+alias nohup='nohup >/dev/null &>/dev/null'
 
 # simple shortcuts
 alias aliases='alias -p'