Added styling and darkmode for forms

[MiliMade]

Description

This code added css to forms including darkmode

Related Issue

closes #87

Acceptance Criteria

• Add css to forms

Type of Changes

Type of Changes

	Type
✓	✨ Enhancement

Updates

Before

After

Testing Steps / QA Criteria

• From your terminal, pull down this branch with git pull origin km-fix-forms and check that branch out with git checkout km-fix-forms
• Run npm start
• In the browser, go to http://localhost:3000/ to view the changes to the add list form on the homepage
• Click on a list to go to the list page and view the add item form
• For both lists, check if their darkmode versions
• Test the list to see if they work in both "light" and dark mode

[github-actions]

Visit the preview URL for this PR (updated for commit 39b0760):

https://tcl-70-smart-shopping-list--pr89-km-fix-forms-jju2si3v.web.app

_{(expires Sat, 13 Apr 2024 20:31:20 GMT)}

_{🔥 via Firebase Hosting GitHub Action 🌎}

_{Sign: 7bb526f3a6607712c7f73ffd6c0dfff4c62b86d9}