Make map card clustering configurable (#25429)

* Persistent map clustering

* Make config option instead

src/panels/lovelace/cards/hui-map-card.ts

@@ -139,6 +139,7 @@ class HuiMapCard extends LitElement implements LovelaceCard {
       ? processConfigEntities<MapEntityConfig>(this._config.entities)
       : [];
     this._mapEntities = this._getMapEntities();
+    this._clusterMarkers = this._config.cluster ?? true;
   }
 
   public getCardSize(): number {

src/panels/lovelace/cards/types.ts

@@ -337,6 +337,7 @@ export interface MapCardConfig extends LovelaceCardConfig {
   geo_location_sources?: (GeoLocationSourceConfig | string)[];
   dark_mode?: boolean;
   theme_mode?: ThemeMode;
+  cluster?: boolean;
 }
 
 export interface MarkdownCardConfig extends LovelaceCardConfig {