convert styles to tailwind on home and layout

[NickRoccodev11]

Description

this is a conversion of css rules to tailwind class names on Home.jsx, and Layout.jsx. Also, the Share icon now stays at the top of a list even after the disclosure has opened.

closes #57

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit be69d2d):

https://tcl-74-smart-shopping-list--pr56-nr-tailwindlayout-0by1h4zs.web.app

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