no ref
- Currently we prompt a user for a username to dump their Ghost database with which can be confusing if users can't remember their database details
- The Ghost user _likely_ has the required permissions to dump the database itself so we can first try that without prompting the user and _then_ prompt them if it doesn't work
- We added `--no-tablespaces` to the dump command to try and reduce the likelyhood of hitting users not having the `PROCESS` permission since most hosted DBs don't let this and Ghost's DB setup doesn't require DBs be dumped with that anyway
no ref
- This adds disk space checks, MySQL connection checks and outputs more informative messages
- We go over what all the changes involve and add an escape hatch in the event that people want to back out or run into issues
- Ghost requires env variables to be in a special `__` format which is hard to construct manually
- This script automates that for ease of migration
- Currently doesn't meet our ESLint rules in the slightest so will need tweaking
- This script handles the copy of both assets and the MySQL database
from an existing install to a new Docker based install
- Its currently been tested on the "happy path" of a Ghost CLI install
and works
