Remove h3 reference from print page-break rules to match updated heading structure

Co-authored-by: papotte <21336477+papotte@users.noreply.github.com>

Author: Copilot

src/styles/cv.scss

@@ -190,8 +190,7 @@
 
     // Optimize page breaks
     h1,
-    h2,
-    h3 {
+    h2 {
       page-break-after: avoid;
     }