fix: updating label since chart shows selectable interval (#830)

Author: anandtiwary

projects/observability/src/pages/apis/api-detail/metrics/api-metrics.dashboard.ts

@@ -376,7 +376,7 @@ export const apiMetricsDashboard: DashboardDefaultConfiguration = {
       },
       {
         type: 'text-widget',
-        text: 'Calls per minute'
+        text: 'Calls'
       },
       {
         type: 'cartesian-widget',

projects/observability/src/pages/apis/backend-detail/metrics/backend-metrics.dashboard.ts

@@ -344,7 +344,7 @@ export const backendMetricsDashboard: DashboardDefaultConfiguration = {
       },
       {
         type: 'text-widget',
-        text: 'Calls per minute'
+        text: 'Calls'
       },
       {
         type: 'cartesian-widget',

projects/observability/src/pages/apis/service-detail/metrics/service-metrics.dashboard.ts

@@ -376,7 +376,7 @@ export const serviceMetricsDashboard: DashboardDefaultConfiguration = {
       },
       {
         type: 'text-widget',
-        text: 'Calls per minute'
+        text: 'Calls'
       },
       {
         type: 'cartesian-widget',