chore: remove unused environment variables and update layout components

- Deleted the .env and src/env.d.ts files as they are no longer needed.
- Updated BaseLayout to require title and description props directly, ensuring better clarity in component usage.
- Adjusted various pages to pass explicit title and description values, enhancing SEO and user experience.
- Increased print width in .prettierrc.mjs for improved code formatting.

.prettierrc.mjs

@@ -30,7 +30,7 @@ export default {
 		},
 	],
 	plugins: ["prettier-plugin-astro"],
-	printWidth: 120,
+	printWidth: 180,
 	proseWrap: "never",
 	quoteProps: "consistent",
 	requirePragma: false,