Feat: add header and page number

functions/code.typ

@@ -1 +0,0 @@
-#let code = raw.with(block: true)

styles.typ

@@ -1,6 +1,4 @@
-#import "functions/code.typ": code
+#let document(
-
-#let default(
   title: "This is a title",
   authors: ((
       name: "Yi-Ting Shih",
@@ -34,20 +32,11 @@
     numbering: "1."
   )
   
-  // Raw default
+  // Code section default
   show raw: set text(
     font: "Consolas",
-    size: 8pt,
+    size: 8pt
   )
-  // Code section default
-  show raw.where(block: true): self => {
-    block(
-      fill: luma(240),
-      inset: 8pt,
-      radius: 2pt,
-      self
-    )
-  }
 
   { // Title
     set align(center)