Update nixpkgs -> update hugo to 0.152.2

That also requires a couple of changes in the template. For some of them I just remove the corresponding feature like analytics and comments.

config.json

@@ -4,10 +4,6 @@
 	"title": "Vojtěch Káně",
 	"theme": "hermit",
 
-	"author": {
-		"name": "Vojtěch Káně"
-	},
-
 	"markup": {
 		"goldmark": {
 			"renderer": {
@@ -38,7 +34,10 @@
 				"name": "email",
 				"url": "mailto:vojtech@vkane.cz"
 			}
-		]
+		],
+		"author": {
+			"name": "Vojtěch Káně"
+		}
 	},
 
 	"enableRobotsTXT": true