feat(vite): allow user to set their custom target for transform

[mandarini]

If a project has more than one build or serve (or even test) target, the @nrwl/vite:configuration generator will convert the first one it finds. We can allow the user to manually specify, if they want, which target they want to change.

This could be a niche use case, since most probably the new setup (folder/file structure) will just work for vite, but we cannot really assume, and also someone could want to use multiple custom executors, too. I think it's fair to allow the user to specify the target they want to convert.

The PR also improves a bit the process of converting, by introducing some errors and interractivity, in case the project Nx is trying to convert does not have any executors we recognize, for example.

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Name	Status	Preview	Updated
nx-dev	✅ Ready (Inspect)	Visit Preview	Dec 16, 2022 at 1:14PM (UTC)

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✅ Successfully ran 11 targets

• nx affected --target=e2e --base=578ecb67856613304cd39811b8a74897b8feb236 --head=261e4c638b2e9aa91ee6bbb657d714f93744b8da --exclude=e2e-storybook,e2e-storybook-angular,e2e-react-native,e2e-detox --parallel=1
• nx depcheck --no-dte
• nx lint --no-dte
• nx check-lock-files --no-dte
• nx affected --target=lint --base=578ecb67856613304cd39811b8a74897b8feb236 --head=261e4c638b2e9aa91ee6bbb657d714f93744b8da --parallel=3
• nx check-commit --no-dte
• nx affected --target=build --base=578ecb67856613304cd39811b8a74897b8feb236 --head=261e4c638b2e9aa91ee6bbb657d714f93744b8da --parallel=3
• nx-cloud record -- nx format:check --base=578ecb67856613304cd39811b8a74897b8feb236 --head=261e4c638b2e9aa91ee6bbb657d714f93744b8da
• nx affected --target=test --base=578ecb67856613304cd39811b8a74897b8feb236 --head=261e4c638b2e9aa91ee6bbb657d714f93744b8da --parallel=1
• nx check-imports --no-dte
• nx documentation --no-dte

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[jaysoo]

Added some comments.

There is also the enquirer package that needs to be added to @nrwl/vite/package.json.

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