allow to compile only the abstract

lib/abstracts.typ

@@ -30,15 +30,18 @@
   keywords-en: (),
   abstract-en: [],
   heading-font: "TeX Gyre Heros",
-  school-color-verso: rgb("0054a0")
+  school-color-verso: rgb("0054a0"),
+  align-to-even-page: true,
 ) = {
   set page(
     numbering: none,
     header: none,
   )
 
-  pagebreak()
-  pagebreak(to: "even")
+  if align-to-even-page {
+    pagebreak()
+    pagebreak(to: "even")
+  }
 
   set page(
     margin: (