Add counter panels to rate limiter dashboard (#3064)

### Description of change

##### Checklist

- [ ] Tested in playground or other setup
- [ ] Screenshot (Grafana) from playground added to PR for 15+ minute
run
- [ ] Documentation is changed or added
- [ ] Tests and/or benchmarks are included
- [ ] Breaking changes


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced a new row with a time series panel for enhanced data
visualization on the rate limiter dashboard.
- Expanded dashboard content with additional statistical panels for more
comprehensive data analysis.

- **Refactor**
- Improved dashboard layout to accommodate new visual elements and data
queries.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

dashboards/grafana/dashboards/summary/rate-limiter/rows.libsonnet

@@ -1,3 +1,4 @@
+local statPanel = import '../../../panels/stat.libsonnet';
 local timeSeriesPanel = import '../../../panels/time-series.libsonnet';
 local portUtils = import '../../../utils/port.libsonnet';
 local prometheusUtils = import '../../../utils/prometheus.libsonnet';
@@ -7,6 +8,43 @@ function(datasourceName, policyName, component, extraFilters={})
   local componentID = std.get(component.component, 'parent_component_id', default=component.component_id);
   local stringFilters = prometheusUtils.dictToPrometheusFilter(extraFilters { policy_name: policyName, component_id: componentID });
 
+
+  local row1 = [
+    statPanel(
+      'Total Requests',
+      datasourceName,
+      'sum(increase(rate_limiter_counter_total{%(filters)s}[$__range]))' % { filters: stringFilters },
+      x=0,
+      h=10,
+      w=8,
+      panelColor='blue',
+      graphMode='area',
+      unit='short'
+    ),
+    statPanel(
+      'Total Accepted Requests',
+      datasourceName,
+      'sum(increase(rate_limiter_counter_total{%(filters)s, decision_type="DECISION_TYPE_ACCEPTED"}[$__range]))' % { filters: stringFilters },
+      x=8,
+      h=10,
+      w=8,
+      graphMode='area',
+      unit='short'
+    ),
+    statPanel(
+      'Total Rejected Requests',
+      datasourceName,
+      'sum(increase(rate_limiter_counter_total{%(filters)s, decision_type="DECISION_TYPE_REJECTED"}[$__range]))' % { filters: stringFilters },
+      x=16,
+      h=10,
+      w=8,
+      panelColor='red',
+      graphMode='area',
+      noValue='No rejected requests',
+      unit='short'
+    ),
+  ];
+
   local targets =
     [
       g.query.prometheus.new(datasourceName, 'sum by(decision_type) (rate(rate_limiter_counter_total{%(filters)s}[$__rate_interval]))' % { filters: stringFilters })
@@ -18,7 +56,7 @@ function(datasourceName, policyName, component, extraFilters={})
     else
       [];
 
-  local row1 = [
+  local row2 = [
     timeSeriesPanel(
       'Aperture Rate Limiter',
       datasourceName,
@@ -28,4 +66,4 @@ function(datasourceName, policyName, component, extraFilters={})
     ),
   ];
 
-  [row1]
+  [row1, row2]