chore: support for APMs (#2874)

Add the support for Newrelic and Datadog.
ref: https://www.chatwoot.com/docs/self-hosted/monitoring/apm-and-error-monitoring

fixes: #2861

.env.example

@@ -85,8 +85,6 @@ AWS_ACCESS_KEY_ID=
 AWS_SECRET_ACCESS_KEY=
 AWS_REGION=
 
-# Sentry
-SENTRY_DSN=
 
 # Log settings
 # Disable if you want to write logs to a file
@@ -139,6 +137,25 @@ ANDROID_SHA256_CERT_FINGERPRINT=AC:73:8E:DE:EB:56:EA:CC:10:87:02:A7:65:37:7B:38:
 USE_INBOX_AVATAR_FOR_BOT=true
 
 
+### APM and Error Monitoring configurations
+## Sentry
+# SENTRY_DSN=
+
+## Scout
+## https://scoutapm.com/docs/ruby/configuration
+# SCOUT_KEY=YOURKEY
+# SCOUT_NAME=YOURAPPNAME (Production)
+# SCOUT_MONITOR=true
+
+## NewRelic
+# https://docs.newrelic.com/docs/agents/ruby-agent/configuration/ruby-agent-configuration/
+# NEW_RELIC_LICENSE_KEY=
+
+## Datadog
+## https://github.com/DataDog/dd-trace-rb/blob/master/docs/GettingStarted.md#environment-variables
+# DD_TRACE_AGENT_URL=
+
+
 
 ## IP look up configuration
 ## ref https://github.com/alexreisner/geocoder/blob/master/README_API_GUIDE.md