add no_data illustration to monitoring empty state

app/assets/javascripts/monitoring/components/dashboard.vue

@@ -73,6 +73,10 @@
         type: String,
         required: true,
       },
+      emptyNoDataSvgPath: {
+        type: String,
+        required: true,
+      },
       emptyUnableToConnectSvgPath: {
         type: String,
         required: true,
@@ -188,6 +192,7 @@
     :clusters-path="clustersPath"
     :empty-getting-started-svg-path="emptyGettingStartedSvgPath"
     :empty-loading-svg-path="emptyLoadingSvgPath"
+    :empty-no-data-svg-path="emptyNoDataSvgPath"
     :empty-unable-to-connect-svg-path="emptyUnableToConnectSvgPath"
   />
 </template>

app/assets/javascripts/monitoring/components/empty_state.vue

@@ -27,6 +27,10 @@
         type: String,
         required: true,
       },
+      emptyNoDataSvgPath: {
+        type: String,
+        required: true,
+      },
       emptyUnableToConnectSvgPath: {
         type: String,
         required: true,
@@ -54,7 +58,7 @@
             buttonPath: this.documentationPath,
           },
           noData: {
-            svgUrl: this.emptyUnableToConnectSvgPath,
+            svgUrl: this.emptyNoDataSvgPath,
             title: 'No data found',
             description: `You are connected to the Prometheus server, but there is currently
               no data to display.`,

app/views/projects/environments/metrics.html.haml

@@ -14,6 +14,7 @@
     "documentation-path": help_page_path('administration/monitoring/prometheus/index.md'),
     "empty-getting-started-svg-path": image_path('illustrations/monitoring/getting_started.svg'),
     "empty-loading-svg-path": image_path('illustrations/monitoring/loading.svg'),
+    "empty-no-data-svg-path": image_path('illustrations/monitoring/no_data.svg'),
     "empty-unable-to-connect-svg-path": image_path('illustrations/monitoring/unable_to_connect.svg'),
     "metrics-endpoint": additional_metrics_project_environment_path(@project, @environment, format: :json),
     "deployment-endpoint": project_environment_deployments_path(@project, @environment, format: :json),