Delete backslashes from completion

[noraworld]

Problematic command

❯ marlin info Kosuke’s\ iPhone\ Pro\ 13

No such device registered: Kosuke’s iPhone Pro 13

The following command might help you
marlin register Kosuke’s iPhone Pro 13

Right command

❯ marlin info Kosuke’s iPhone Pro 13

Name: Kosuke’s iPhone 13 Pro
Paired: yes
Trusted: no
Blocked: no
Connected: yes

No such device registered: iPhone

The following command might help you
marlin register iPhone