Tile borders visible with GeoAxis

Going from Axis --> GeoAxis results in some of the tiles having their border plotted. ```julia ext = Extent(X = (-105.233315f0, -105.13142f0), Y = (39.92924f0, 39.98638f0)); Tyler.Map(ext, axis=(;type = GeoAxis)) ``` <img width="942" height="512" alt="Image" src="https://github.com/user-attachments/assets/f1a3b77a-4460-4958-b691-a8b45b424552" />