Remove panics, if there are not addons to remove

[Trojan295]

❯ cargo run list
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `target/debug/eso-addons list`
++
||
++
++
❯ cargo run remove
    Finished dev [unoptimized + debuginfo] target(s) in 0.05s
     Running `target/debug/eso-addons remove`
thread 'main' panicked at 'there must be at least one selectable item', /home/damian/.cargo/registry/src/github.com-1ecc6299db9ec823/requestty-ui-0.2.1/src/select/mod.rs:100:14
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[Trojan295]

Closed by #28