feat: implement SEO improvements, listing profiles, service images, and towns serviced

migrate_towns_serviced.sql

@@ -0,0 +1,13 @@
+CREATE TABLE IF NOT EXISTS listing_towns (
+    id SERIAL PRIMARY KEY,
+    listing_id INTEGER NOT NULL REFERENCES listings(id) ON DELETE CASCADE,
+    town VARCHAR(100) NOT NULL,
+    UNIQUE(listing_id, town)
+);
+
+CREATE TABLE IF NOT EXISTS service_listing_towns (
+    id SERIAL PRIMARY KEY,
+    service_listing_id INTEGER NOT NULL REFERENCES service_listings(id) ON DELETE CASCADE,
+    town VARCHAR(100) NOT NULL,
+    UNIQUE(service_listing_id, town)
+);