v1.18.1 — cleaner inline compass

The dashed 10-minute average marker is gone from the weather card's inline compass. At 72px it was a few faint pixels with no row beside it to say what it was — barely visible and unexplained is worse than absent.

It is gated on the same 90px threshold that governs the cardinal letters, rather than the weather card passing null. That keeps one rule about what a small compass can usefully show, in the place that decides how the compass is drawn.

The wind card's 132px compass is unchanged, and the small compass still shows the current direction with its tooltip.