[ fix ] glow wont detect config width=0 (wrap disable) in glow.yml (Debian Linux)

[kenttonino]

Summary

• In Debian Linux, I can disable the word wrap glow --width=0 README.md
  • However when I set the width: 0 in glow.yml config it cannot detect disabling of word wrap when I run glow README.md. It default to 80 width.
  • If I set the width to > 0, it works fine, it can detect the width.

Changes

• Add a condition to check if the width is set in glow.yml if the user did not explicitly set the width (e.g. glow --width=0).
  • If exist, skipped the auto-detection of terminal width and capping of width.

Test Plan

• Set the glow.yml to width: 0.
• Run glow README.md.
  • It should disable the wrap.