Restructure code: split features into separate files

pages/cover.typ

@@ -0,0 +1,48 @@
+#import "marks.typ"
+
+#let render(title, place, author, reportType, confidential: false, tlp: none, draft: false) = {
+  // Define page
+  set page(
+    background: [
+      #image("title.png")
+    ],
+    margin: (
+      top: 50%
+    )
+  )
+  // Reset counter
+  counter(page).update(n => n - 1)
+  
+  text(size: 32pt, [
+    #text(reportType)\ 
+    #text(title, weight: "black")
+  ])
+
+  v(0.25pt)
+  
+  text(size: 16pt, [
+    #place, #datetime.today().display("[day].[month].[year]")
+
+    #author
+  ])
+
+  v(1fr)
+
+  grid(
+    columns: (1fr, 1fr, 1fr),
+    gutter: 5pt,
+    rows: (75pt),
+    // "Confidential" marking
+    if confidential {
+      marks.confidential()
+    },
+    // "Draft" marking
+    if draft {
+      marks.draft()
+    },
+    // TLP marking, see https://www.first.org/tlp/
+    if tlp != none {
+      marks.tlp(tlp)
+    }
+  )
+}