tweak(map): increase bathymetry depth label size

apps/web/src/widgets/map3d/Map3D.tsx

@@ -960,7 +960,8 @@ function injectOceanBathymetryLayers(style: StyleSpecification, maptilerKey: str
       "symbol-placement": "line",
       "text-field": depthLabel,
       "text-font": ["Noto Sans Regular", "Open Sans Regular"],
-      "text-size": ["interpolate", ["linear"], ["zoom"], 10, 10, 12, 12],
+      // Make depth labels more legible on both mercator + globe.
+      "text-size": ["interpolate", ["linear"], ["zoom"], 10, 12, 12, 14, 14, 15],
       "text-allow-overlap": false,
       "text-padding": 2,
       "text-rotation-alignment": "map",