fix: decimals on api error rate db

Author: henrywhitaker3

argo/cluster/monitoring/kube-prometheus-stack/chart/dashboards/srep-api.json

@@ -171,7 +171,7 @@
           "color": {
             "mode": "thresholds"
           },
-          "decimals": 2,
+          "decimals": 3,
           "mappings": [],
           "noValue": "?",
           "thresholds": {
@@ -1059,7 +1059,8 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green"
+                "color": "green",
+                "value": null
               },
               {
                 "color": "red",
@@ -1160,7 +1161,8 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green"
+                "color": "green",
+                "value": null
               },
               {
                 "color": "red",
@@ -1223,7 +1225,7 @@
     "list": []
   },
   "time": {
-    "from": "now-3h",
+    "from": "now-24h",
     "to": "now"
   },
   "timepicker": {},