Added docker compose dev env, improved varnish VCL, and added favicons.

static/favicon.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" width="200" height="200"><svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 200 200"><rect width="200" height="200" fill="url('#gradient')"></rect><defs><linearGradient id="SvgjsLinearGradient1001" gradientTransform="rotate(45 0.5 0.5)"><stop offset="0%" stop-color="#697f83"></stop><stop offset="100%" stop-color="#161f2f"></stop></linearGradient></defs><g><g fill="#b1d6bb" transform="matrix(12.518681318681319,0,0,12.518681318681319,14.808730859284879,189.00720071373405)" stroke="#498990" stroke-width="0.7"><path d="M8.87 0L6.36-5.02L4.50-5.02L4.50 0L1.07 0L1.07-14.22L6.67-14.22Q9.20-14.22 10.63-13.10Q12.05-11.97 12.05-9.92L12.05-9.92Q12.05-8.44 11.45-7.46Q10.85-6.48 9.57-5.88L9.57-5.88L12.54-0.15L12.54 0L8.87 0ZM4.50-11.57L4.50-7.67L6.67-7.67Q7.65-7.67 8.14-8.18Q8.63-8.69 8.63-9.61Q8.63-10.53 8.13-11.05Q7.64-11.57 6.67-11.57L6.67-11.57L4.50-11.57Z"></path></g></g></svg><style>@media (prefers-color-scheme: light) { :root { filter: none; } }
+@media (prefers-color-scheme: dark) { :root { filter: none; } }
+</style></svg>

static/site.webmanifest

@@ -0,0 +1,21 @@
+{
+  "name": "MyWebSite",
+  "short_name": "MySite",
+  "icons": [
+    {
+      "src": "/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ],
+  "theme_color": "#ffffff",
+  "background_color": "#ffffff",
+  "display": "standalone"
+}