Create previews for components

[nicolas-brousse]

• Use latest version of lookbook
• All previews
• Include TestHelper to have builder object?

---

• Maybe create two combustion app path, one for test, one for development
• Confirm the gem should append preview path in Rails engine

To test run puma, then load http://localhost:9292

Closes #52

[nicolas-brousse]

@Spone small wip :)

[Spone]

@nicolas-brousse I rebased and fixed the specs.

But I'm not sure how to start the server locally, here is the output:

$ bundle exec puma       
Puma starting in single mode...
* Puma version: 6.0.2 (ruby 3.1.3-p185) ("Sunflower")
*  Min threads: 0
*  Max threads: 5
*  Environment: development
*          PID: 346882
! Unable to load application: NameError: uninitialized constant Rails

    class Engine < ::Rails::Engine
                   ^^^^^^^
bundler: failed to load command: puma (/home/hans/.asdf/installs/ruby/3.1.3/bin/puma)
/home/hans/projects/vc/view_component-form/lib/view_component/form/engine.rb:6:in `<module:Form>': uninitialized constant Rails (NameError)

    class Engine < ::Rails::Engine
                   ^^^^^^^
	from /home/hans/projects/vc/view_component-form/lib/view_component/form/engine.rb:4:in `<module:ViewComponent>'
	from /home/hans/projects/vc/view_component-form/lib/view_component/form/engine.rb:3:in `<top (required)>'
	[... truncated]

[nicolas-brousse]

@Spone I did a small change