feat(shadcn): add skip registry dependency flag

[lloydrichards]

Goal/Scope

I had a request to add a registry item that would add all item: lloydrichards/shadcn-storybook-registry#2 but in the process was looking for a way to be selective about what dependencies to add. At the moment with the registry item (json) i have a long list of registry dependencies that add basically all the items. This means that if someone already has items that they need to select no (N) to prevent override each time.

I wanted to have a look at if it would be easy to add a new flag that would just skip over the registryDependencies items when adding a new components.

Description

I tried to be as minimal as possible so added a new flag --skip-registry-deps to the add command that will cause the resolveRegistryItems() to only return the initial components rather than the expanded list with the registryDependencies.

This required some prop drilling in addProjectComponents() but was simple enough addWorkspaceComponents()

Let me know if you prefer this done another way.

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[shadcn]

@lloydrichards Would a better comparison check (and auto-skip) work? I wonder if we can improve the file comparison and automatically skip (no prompt) if same?

[lloydrichards]

Would certainly achieve the same effect. I guess the file comparisons function could just check for value equality between the incoming and current file? But this might not work perfectly if the local version has different formatting (prettier, biome etc). If you would prefer this over the new flag then we can close this PR and I'll try again with the comparison function