* chore(install): 

  install script improvement

- remove ipify
- migrate from PostHog to Segment
- single function for sending event
Signed-off-by: Prashant Shahi <prashant@signoz.io>

* chore: ️ remove commented code

* chore(install):  update the auth token

* chore(install):  set context.default config true

* Revert "chore(install):  set context.default config true"

This reverts commit 0704013ac7ce0c823c423987ceb575442deb8108.

* chore(install):  use uname sha for installation id

* refactor(slack): 

 use signoz.io/slack URL
Signed-off-by: Prashant Shahi <prashant@signoz.io>