updated to use sass for easier updates

I also retired the light mode theme (i.e removed it completely)

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+  "liveSassCompile.settings.formats": [
+      {
+        "format": "expanded",
+        "extensionName": ".css", 
+        "savePath": "/public/css",
+        "generateMap": false
+      }
+    ]
+}