Geomap: Base layer server configuration (#37041)

packages/grafana-data/src/types/config.ts

@@ -3,6 +3,7 @@ import { PanelPluginMeta } from './panel';
 import { GrafanaTheme } from './theme';
 import { SystemDateFormatSettings } from '../datetime';
 import { GrafanaTheme2 } from '../themes';
+import { MapLayerOptions } from '../geo/layer';
 
 /**
  * Describes the build information that will be available via the Grafana configuration.
@@ -125,4 +126,6 @@ export interface GrafanaConfig {
   dateFormats?: SystemDateFormatSettings;
   sentry: SentryConfig;
   customTheme?: any;
+  geomapDefaultBaseLayer?: MapLayerOptions;
+  geomapDisableCustomBaseLayer?: boolean;
 }