remove period for consistency

public/app/plugins/panel/radialbar/module.tsx

@@ -74,7 +74,7 @@ export const plugin = new PanelPlugin<Options>(RadialBarPanel)
     builder.addRadio({
       path: 'endpointMarker',
       name: t('radialbar.config.endpoint-marker', 'Endpoint marker'),
-      description: t('radialbar.config.endpoint-marker-description', 'Glow is only supported in dark mode.'),
+      description: t('radialbar.config.endpoint-marker-description', 'Glow is only supported in dark mode'),
       category,
       defaultValue: defaultOptions.endpointMarker,
       settings: {

public/locales/en-US/grafana.json

@@ -12463,7 +12463,7 @@
         "label": "Effects"
       },
       "endpoint-marker": "Endpoint marker",
-      "endpoint-marker-description": "Glow is only supported in dark mode.",
+      "endpoint-marker-description": "Glow is only supported in dark mode",
       "endpoint-marker-glow": "Glow",
       "endpoint-marker-none": "None",
       "endpoint-marker-point": "Point",