feat(软件图标): 新增PNG和ICO图标支持

assets/webui/ofdgo.json

@@ -22,6 +22,12 @@
 			"src": "./ofdgo.svg",
 			"sizes": "any",
 			"type": "image/svg+xml"
+		},
+		{
+			"src": "./ofdgo.png",
+			"sizes": "512x512",
+			"type": "image/png",
+			"purpose": "any"
 		}
 	]
 }