refactor: weights are now wrapped in a Maybe.

content.odin

@@ -20,7 +20,7 @@ Page :: struct {
 	description: string,
 	date:        string,
 	year:        string,
-	weight:      int,
+	weight:      Maybe(int),
 	lastmod:     string,
 	menus:       map[string]Menu_Entry,
 	content:     string,
@@ -254,7 +254,7 @@ load_page :: proc(
 		}
 	}
 	page.year = get_year(page.date)
-	page.weight = fm.weight if fm.weight != 0 else DEFAULT_WEIGHT
+	page.weight = fm.weight
 	page.lastmod = fm.lastmod
 	page.draft = fm.draft
 	page.starred = fm.isStarred