please the iOS gods

internal/server/admin.html

@@ -10,6 +10,13 @@
     <link rel="stylesheet" href="https://cdn.rob.mx/nidito/index.css" />
     <link rel="stylesheet" href="/static/index.css" />
     <link rel="manifest" href="/static/admin-manifest.webmanifest" />
+    <link rel="icon" type="image/png" href="/static/icon/128.png" sizes="128x128" />
+    <link rel="icon" type="image/png" href="/static/icon/512.png" sizes="512" />
+
+    <link rel="apple-touch-icon" href="/static/icon/512.png">
+    <link rel="apple-touch-icon" sizes="152x152" href="/static/icon/152.png">
+    <link rel="apple-touch-icon" sizes="384x384" href="/static/icon/384.png">
+    <link rel="apple-touch-icon" sizes="192x192" href="/static/icon/192.png">
     <style>
     #user-list {
       display: grid;

internal/server/server.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"io/fs"
 	"log"
+	"mime"
 	"net/http"
 	"os"
 	"time"
@@ -236,6 +237,7 @@ func Initialize(config *Config) (http.Handler, error) {
 		assetRoot = http.FS(subfs)
 	}
 
+	mime.AddExtensionType(".webmanifest", "application/manifest+json")
 	router.ServeFiles("/static/*filepath", assetRoot)
 	router.GET("/login", renderTemplate(loginTemplate))
 	router.GET("/", auth.RequireAuthOrRedirect(renderTemplate(indexTemplate), "/login"))

internal/server/static/admin-manifest.webmanifest

@@ -4,7 +4,42 @@
   "display": "standalone",
   "icons": [
     {
-      "src": "static/512.png",
+      "src": "static/icon/72.png",
+      "sizes": "72x72",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/96.png",
+      "sizes": "96x96",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/128.png",
+      "sizes": "128x128",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/144.png",
+      "sizes": "144x144",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/152.png",
+      "sizes": "152x152",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/384.png",
+      "sizes": "384x384",
+      "type": "image/png"
+    },
+    {
+      "src": "static/icon/512.png",
       "sizes": "512x512",
       "type": "image/png"
     }