Refactors site to use interactive terminal UI

Moves site from static HTML to a dynamic terminal interface.

This commit represents a major overhaul, introducing:
- A functional terminal emulator implemented in JavaScript.
- Command parsing and execution framework.
- Various terminal commands for navigation and utility functions.
- SASS conversion.

The old CSS and simple HTML are completely removed. A new Hugo theme is implemented.

assets/js/commands/navigation.js

@@ -0,0 +1,52 @@
+// Navigation Commands Module
+// Commands for navigating to different pages or URLs
+
+// Navigate to URL command
+window.terminal.registerCommand("goto", "Navigate to a URL", (args) => {
+  if (args.length === 0) {
+    window.terminal.printError("Usage: goto <url>");
+    window.terminal.print("Examples:");
+    window.terminal.print("  goto google.com");
+    window.terminal.print("  goto https://github.com");
+    return;
+  }
+
+  const url = args[0];
+  window.terminal.printInfo(`Navigating to ${url}...`);
+
+  setTimeout(() => {
+    window.location.href = url.startsWith("http") ? url : `https://${url}`;
+  }, 500);
+});
+
+// Open in new tab command
+window.terminal.registerCommand("open", "Open URL in new tab", (args) => {
+  if (args.length === 0) {
+    window.terminal.printError("Usage: open <url>");
+    window.terminal.print("Examples:");
+    window.terminal.print("  open google.com");
+    window.terminal.print("  open https://github.com");
+    return;
+  }
+
+  const url = args[0];
+  window.terminal.printInfo(`Opening ${url} in new tab...`);
+
+  const fullUrl = url.startsWith("http") ? url : `https://${url}`;
+  window.open(fullUrl, "_blank");
+});
+
+// Reload page command
+window.terminal.registerCommand("reload", "Reload the current page", () => {
+  window.terminal.printInfo("Reloading page...");
+  setTimeout(() => {
+    window.location.reload();
+  }, 500);
+});
+
+// PAGE NAVIGATION
+
+// About command
+window.terminal.registerCommand("about", "About this site", () => {
+  window.location.href = "/about/";
+});