Add a laconicd Grafana dashboard to monitoring stack (#799)

Part of https://www.notion.so/Monitoring-and-alerting-for-laconicd-86727c3b4dde4dc993d87d6e29f935fe

- Add a laconicd Grafana dashboard
  - Update fixturenet-laconicd script to expose metrics
- Upgrade Grafana version to avoid errors while saving changes made to a dashboard (see [thread](https://community.grafana.com/t/error-cannot-add-property-ishandled-object-is-not-extensible/109268))
-  Add an alert rule for Ajna watcher

Reviewed-on: cerc-io/stack-orchestrator#799
Co-authored-by: Prathamesh Musale <prathamesh.musale0@gmail.com>
Co-committed-by: Prathamesh Musale <prathamesh.musale0@gmail.com>

stack_orchestrator/data/config/fixturenet-laconicd/create-fixturenet.sh

@@ -102,6 +102,17 @@ if [ "$1" == "clean" ] || [ ! -d "$HOME/.laconicd/data/blockstore.db" ]; then
     fi
   fi
 
+  # Enable telemetry (prometheus metrics: http://localhost:1317/metrics?format=prometheus)
+  if [[ "$OSTYPE" == "darwin"* ]]; then
+    sed -i '' 's/enabled = false/enabled = true/g' $HOME/.laconicd/config/app.toml
+    sed -i '' 's/prometheus-retention-time = 0/prometheus-retention-time = 60/g' $HOME/.laconicd/config/app.toml
+    sed -i '' 's/prometheus = false/prometheus = true/g' $HOME/.laconicd/config/config.toml
+  else
+    sed -i 's/enabled = false/enabled = true/g' $HOME/.laconicd/config/app.toml
+    sed -i 's/prometheus-retention-time = 0/prometheus-retention-time = 60/g' $HOME/.laconicd/config/app.toml
+    sed -i 's/prometheus = false/prometheus = true/g' $HOME/.laconicd/config/config.toml
+  fi
+
   # Allocate genesis accounts (cosmos formatted addresses)
   laconicd add-genesis-account $KEY 100000000000000000000000000aphoton --keyring-backend $KEYRING