Add uziom generation script and update wet input documents

- Created a new Python script `uziom.py` for generating DXF drawings of grounding systems based on user input parameters.
- Added detailed documentation in `wet_input_15.docx` and `wet_input_3.docx` for the design of grounding systems, including calculations for resistance and resistivity measurements.
- Included placeholders for dynamic data insertion in the documents to facilitate project-specific customization.

components/templates/nav.js

@@ -1,7 +1,13 @@
 import Link from "next/link";
+import { useRouter } from 'next/router';
 import { Pane, Heading } from "evergreen-ui";
 
 export default function Nav() {
+	const router = useRouter();
+	
+	const isActive = (href) => {
+		return router.pathname === href ? `active font-bold bg-slate-200 rounded-md` : '';
+	  };
 	return (
 		<Pane display="flex">
 			<Link href="/">
@@ -9,12 +15,18 @@ export default function Nav() {
 					<img src="logo.png" className="h-12" />
 				</h2>
 			</Link>
-			<Link href="/pdf">
-				<h3 className="px-3 py-2 place-self-end">PDF</h3>
+			<Link href="/">
+				<h3 className={"px-3 py-2 place-self-end "+isActive('/')} style={{cursor: 'pointer'}}>Przekrój</h3>
 			</Link>
-			{/*<Link href="/kontakt">
+			<Link href="/cross">
+				<h3 className={"px-3 py-2 place-self-end "+isActive('/cross')} style={{cursor: 'pointer'}}>Siatka</h3>
+			</Link>
+			<Link href="/uziomy">
+				<h3 className={"px-3 py-2 place-self-end "+isActive('/uziomy')} style={{cursor: 'pointer'}}>Uziomy</h3>
+			</Link>
+			{/* <Link href="/kontakt">
 				<h3 className="px-3 py-2 place-self-end">Kontakt</h3>
-	</Link>*/}
+	</Link> */}
 		</Pane>
 	);
 }