feat(#20): Make the site a PWA

static/site.webmanifest

@@ -0,0 +1,22 @@
+{
+	"name": "Living Dex Tracker",
+	"short_name": "Living Dex Tracker",
+	"description": "A tool to enable you to track your progress in completing the living Pokédex in Pokémon games.",
+	"icons": [
+		{
+			"src": "/android-chrome-192x192.png",
+			"sizes": "192x192",
+			"type": "image/png"
+		},
+		{
+			"src": "/android-chrome-512x512.png",
+			"sizes": "512x512",
+			"type": "image/png",
+			"purpose": "any maskable"
+		}
+	],
+	"start_url": "/",
+	"theme_color": "#f00000",
+	"background_color": "#f0f0f0",
+	"display": "standalone"
+}