Add podcasts and map view

db/migrate/20230618050051_create_podcasts.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+ROM::SQL.migration do
+  change do
+    create_table :podcasts do
+      primary_key :id
+      column :name, :text, null: false
+      column :url, :text, null: false
+      column :overcast_id, :text, null: false
+    end
+  end
+end