Empty ascii art (e.g. hide_ascii) + single --show = only blank lines in output

[teohhanhui]

Describe the bug
When using an empty ascii art, either via hide_ascii = true or by pointing custom_ascii.path to a blank text file, running macchina with only a single --show option, the output consists entirely of blank lines (but with color codes).

To Reproduce
Steps to reproduce the behavior:

1. echo 'hide_ascii = true' > ~/.config/macchina/themes/mytheme.toml
2. macchina --show host --theme mytheme

Expected behavior
The value is printed normally.

Screenshots

macchina --doctor output
N/A

System Information
You don't have to provide this information if you're not comfortable doing so, but it'll help us solve the issue a lot faster.

• Distribution: Fedora Linux Asahi Remix 40 (Workstation Edition)
• Desktop Environment: GNOME
• Operating System: Linux
• Terminal: Ptyxis
• Macchina's version: 6.1.8

[grtcdr]

I can also reproduce this. It's definitely a bug.