Tweak Geo database replication command

Description

This is a follow-up after !2093 (comment 48854235).

@jramsay wrote:

@grzesiek do you mind slightly tweaking the prompt? There are a lot of exclamation marks.

Can we ask them the to type replicate (no exclamation mark) and also allow them to exit with no?

Also I'd propose the following tweaks to the prompt:

*** You are about to delete your local PostgreSQL database, and replicate the primary database. ***
*** The primary geo node is gitlab-primary.geo ***
*** Are you sure you want to continue (replicate/no)? ***