Introduce new parcel-based world order

Webpack was entirely and utterly unmaintainable. This commit throws it
out of the window into the gutter where it belongs, and rewrites the
entire repository so that it may work with parcel instead.

.parcelrc

@@ -0,0 +1,6 @@
+{
+  "extends": "@parcel/config-default",
+  "transforms": {
+    "*.mp3": [ "@parcel/transformer-raw" ]
+  }
+}