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.

static/css/nowplaying.css

@@ -1,28 +0,0 @@
-.nowplayingcard {
-    margin: auto;
-    padding: 14px;
-}
-
-.nowplayingcontainer-inner {
-    transition: 0.3s;
-    display: inline-flex;
-
-    .trackInfo {
-        width: 100%;
-    }
-
-    #album {
-        display: none;
-    }
-}
-
-img#trackart {
-    transition: 0.3s;
-    width: 60px;
-    height: 50px;
-    padding-left: 10px;
-}
-
-img#trackart[src=""] {
-    display: none;
-}

static/site.webmanifest

@@ -0,0 +1,21 @@
+{
+  "name": "ritual.sh",
+  "short_name": "ritual.sh",
+  "icons": [
+    {
+      "src": "/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ],
+  "theme_color": "#ffffff",
+  "background_color": "#ffffff",
+  "display": "standalone"
+}