Refactor styles and restructure CSS files

- Removed App.css and migrated styles to individual component and page-specific CSS files.
- Created base styles in base.css for layout utilities and common elements.
- Added component-specific styles in cards.css, header.css, and other relevant files.
- Updated imports in App.tsx and other components to reflect new CSS structure.
- Enhanced responsiveness and visual consistency across various components and pages.

src/pages/Home.tsx

@@ -1,6 +1,7 @@
 import { motion } from "framer-motion";
 import TypingText from "../components/animatedTyping";
 import { useState } from "react";
+import "../styles/pages/home.css";
 
 const welcomeText = `Hello! My name is Sasha Bayda and welcome to my digital resume site!