Only run init() on commands that need it

[asnewman]

Overview

This PR makes a change to take into account what command is being run before deciding to run init() or not.

Also includes two minor improvements:

• Explicitly use structured format when querying for components
• Ignore white space only lines of code and components when generating suggestions

Context

The Ditto VSCode extension runs commands such as generate-suggestions, component-folders, and replace. These commands don't rely on local data (it calls the Ditto API) and thus doesn't require a config.yml to be present. Because of this, it is unnecessary to run init() when these commands are called.

Test Plan

Testing successfully completed in via:

• Delete ditto directory
• Run yarn start generate-suggestions, verify that the ditto directory isn't created
• Run yarn start pull, verify that the ditto directory is created
• Update testfiles/test1.jsx to include text for a component in your workspace. Verify yarn start generate-suggestions results in a suggestion for that text

[azjgard]

nit: could move these commands to top of file as a constant