Added blocks head and header in base.amber.

web/templates/base.amber

@@ -9,7 +9,7 @@ html[lang="en"]
 		meta[name="description"][content="File upload service that keep files for 2 days."]
 		link[rel="icon"][href="/assets/img/favicon.svg"][sizes="any"][type="image/svg+xml"]
 		link[href="/assets/css/main.css"][rel="stylesheet"]
-		script[src="/assets/js/main.js"][defer]
+		block head
 	body
 		header
 			svg#logo[viewBox="0 -25 216 40"]
@@ -17,7 +17,8 @@ html[lang="en"]
 				text.under[y="11"] Welcome to my sacred place, wanderer
 			nav
 				a[href=MainSite] Back to main website
-				h1 Upload
+				block header
+					h1 Upload
 		block body
 		footer
 			| 2017—2022 Arav <