client: improve code structure * Change loading strategy for waterway axis to bbox mainly for consistency. Its size is small compared to other WFS features, so the speed gain is not big by changing to dynamic loading. * Use getLayerByName() instead of hard references. * Refactor section about loading layers to be shorter and to reference the name of each layer only once.

#!/usr/bin/env bash
exec 2>&1 ./cmd/gemma/gemma --config gemma.toml