Use the opaque iOS status bar and keep the SVG tab icon

black-translucent needs viewport-fit=cover and safe-area padding, which this change does not add. List the PNG favicon before the SVG so browsers that take the last usable icon keep the SVG, add mobile-web-app-capable, and give the manifest a stable id.

public/manifest.webmanifest

@@ -1,4 +1,5 @@
 {
+  "id": ".",
   "name": "God's Eye View",
   "short_name": "God's Eye",
   "description": "Live spatial intelligence in the browser.",