[BUG] Formatting of traffic widget in example config

[Psoewish]

Expected Behavior

Not throw an error when initially compiling

Current Behavior

Throwing an error when initially compiling

Possible Solution

Fix the formatting, I've already forked and fixed it, about to make a PR for that. EDIT: https://github.com/da-rth/yasb/pull/114#issue-2012783171