fix(collections): the collection map opens on all of its places

The map framed its first view for the browser window instead of its own box and then skipped the fit, so a list of cafes across Europe opened on northern France. It now fits the places in its own box with room for the label bar and the controls, fits again when the set of places changes, keeps a view the user moved, opens a single place at town level and keeps a list across the date line on its short arc.

client/src/components/Map/MapViewGL.tsx

@@ -48,7 +48,7 @@ import { addGpxTrackLayers, GPX_HIT_LAYER_ID, hasGpxTrackLayers, selectGpxTrack,
 import { buildPoiPopupHtml } from './placePopup'
 import { pluginsApi, type PluginMapMarker, type PluginMapLayer } from '../../api/client'
 import { DEFAULT_MAP_CENTER, DEFAULT_MAP_ZOOM } from '../../constants/mapDefaults'
-import { computeMapViewport, TILE_SIZE_GL } from '../../utils/mapViewport'
+import { alongShortestArc, computeMapViewport, TILE_SIZE_GL } from '../../utils/mapViewport'
 import { selectedPlaceTarget } from './selectedPlaceTarget'
 import { PLACE_CLUSTER_CIRCLE_LAYER_ID, PLACE_CLUSTER_COUNT_LAYER_ID } from './placeClusterLayers'
 
@@ -2091,7 +2091,7 @@ export function MapViewGL({
       didInitialFocusRef.current = true
     }
     const bounds = new gl.LngLatBounds()
-    focusPoints.forEach(([lat, lng]) => bounds.extend([lng, lat]))
+    alongShortestArc(focusPoints).forEach(([lat, lng]) => bounds.extend([lng, lat]))
     // A day fit still waiting on its route must not overwrite this a moment later.
     pendingRouteFitRef.current = null
     try {
@@ -2099,7 +2099,7 @@ export function MapViewGL({
         padding: fitPadding ?? paddingOpts,
         maxZoom: 15,
         pitch: enableMapbox3d ? 45 : 0,
-        duration: 400,
+        duration: mapReady ? 400 : 0, // handed over while the map is built: it opens there, no flight in
       })
     } catch { /* noop */ }
   }, [focusPoints, focusKey, fitPaddingKey]) // eslint-disable-line react-hooks/exhaustive-deps