Refactor auth commands

[brandenrodgers]

Description and Context

Refactoring the auth commands to follow our new guidelines. Major change in here is that we're now using a standardized auth-type flag to represent the type of auth used for account authorization.

hs auth

• Update description to: "Configure authentication for a HubSpot account."
• Remove --version flag because it's unnecessary
• The type positional should be converted to a flag and renamed to --auth-type
• The account positional should be a flag, and it should support the short-hand -a option

hs init

• Update description to: "Initialize the CLI config file and authenticate a HubSpot account."
• Remove --version flag because it's unnecessary
• The account positional should be a flag, and it should support the short-hand -a option
• The --auth flag should become --auth-type

Screenshots

TODO

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