Update default Tailwind CSS import path

[Jacksonmills]

This commit updates the default import path for Tailwind CSS in the get-config.ts file to potentially fix the issues with using src/app/ dir structure

[Jacksonmills]

Not 100% sure if this would allow for both ./src/app and ./app but that was the idea here, we could add those two options in the CLI though if this doesn't catch both

[shadcn]

Yes. We're making some improvements to the cli to handle this. See @Bekacru's work in #823

[shadcn]

@Jacksonmills I'll close this in favor of #823 but feel free to reopen if you think it's unrelated. Happy to look into this together.

[Jacksonmills]

Yes. We're making some improvements to the cli to handle this. See @Bekacru's work in #823

Nice thanks