feat: Posthog integration (#9077)

# Which Problems Are Solved

- Adds a service in the console to enable Posthog integration based on
upon user environment variables

# How the Problems Are Solved

- A new service has been created in console for posthog
- This is only initiated based upon provided environment variables

# Additional Changes

N/A

# Additional Context

- Closes #[9076](https://github.com/zitadel/zitadel/issues/9076)
- Cannot be merged until this is completed
#[9070](https://github.com/zitadel/zitadel/issues/9070)

console/tsconfig.json

@@ -16,6 +16,7 @@
     "experimentalDecorators": true,
     "moduleResolution": "node",
     "importHelpers": true,
+    "skipLibCheck": true,
     "resolveJsonModule": true,
     "esModuleInterop": true,
     "target": "ES2022",