feat: improve project scaffolding experience

[vigneshshanmugam]

• fix Hide API key during CLI init dialogue and optionally export to env, combine Cloud ID and Kibana URL prompt #906
• Part of Synthetics init command takes args to skip dialogue steps #907
• Adds support for validating both the Kibana URL or cloud.id and adds validation step if the given URL is invalid.
• Hides API key on the CLI prompt and adds the API Key to the push command

[justinkambic]

Left one comment on the UX. It'd be nice to improve as part of this patch, but if it can't be accomplished quickly I am ok if we don't block this, and I can update the issue to reflect the need for a future patch.

Functionality LGTM and I tested this pushing to a cloud project via cloud ID and URL methods, both worked well.