Adds Tailwind CSS for styling

[vishnuravi]

Adds Tailwind CSS for styling

♻️ Current situation & Problem

The current template should include a CSS framework to simplify and standardize styling across @StanfordBDHG projects.

⚙️ Release Notes

Tailwind CSS is a utility-first CSS framework that is known to work well with Next.js, per the official Next.js documentation.

Adds a base configuration of Tailwind CSS to the project.

Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

Merging #13 (90a65f3) into main (65b2df7) will not change coverage.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #13   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines            6         6           
  Branches         1         1           
=========================================
  Hits             6         6           

Files	Coverage Δ
app/page.tsx	100.00% <100.00%> (ø)

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[PSchmiedmayer]

Thank you @vishnuravi; looks great to me 🚀