Migrate all the things

* Migrates from Mongo to Postgres.
* Migrates from JSPM to Webpack.
* Migrates from React to Vuejs.
* Migrates from Bootstrap to Bulma.

Also:
* Fixes rendering of meta data in the document head tag.

models/artist.js

@@ -0,0 +1,25 @@
+export default function (sequelize, DataTypes) {
+  const Artist = sequelize.define('artist', {
+    id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true },
+    name: DataTypes.TEXT,
+    streamUrl: DataTypes.TEXT,
+    purchaseUrl: DataTypes.TEXT,
+    artworkSmall: DataTypes.TEXT,
+    artworkLarge: DataTypes.TEXT,
+  }, {
+    paranoid: true,
+    classMethods: {
+      associate: (models) => {
+        Artist.hasMany(models.track);
+        Artist.hasMany(models.album);
+      },
+    },
+    indexes: [
+      {
+        fields: ['name'],
+      },
+    ],
+  });
+
+  return Artist;
+}