web: add manifest, more icons, and some metadata

web/static/manifest.json

@@ -0,0 +1,75 @@
+{
+    "name": "cobalt",
+    "short_name": "cobalt",
+    "start_url": "/",
+    "icons": [
+        {
+            "src": "/icons/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/icons/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        },
+        {
+            "src": "/icons/generic.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "any"
+        },
+        {
+            "src": "/icons/maskable/48.png",
+            "sizes": "48x48",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/72.png",
+            "sizes": "72x72",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/96.png",
+            "sizes": "96x96",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/128.png",
+            "sizes": "128x128",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/384.png",
+            "sizes": "384x384",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "/icons/maskable/512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
+        }
+    ],
+    "share_target": {
+        "action": "/",
+        "params": {
+            "text": "u",
+            "url": "u"
+        }
+    },
+    "theme_color": "#000000",
+    "background_color": "#000000",
+    "display": "standalone"
+}