Add missing layout!

Anass Rach · Anass Rach · commit 4c5427cef7f0 · 2025-07-28T00:26:18.000+02:00
diff --git a/collections.md b/collections.md
@@ -2,6 +2,7 @@
 title: Collections & Generics
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Generics: Bounded Wildcards (PECS Rule)
diff --git a/datetime.md b/datetime.md
@@ -2,6 +2,7 @@
 title: Date, Time, and Localization
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 LocalDate and LocalTime Operations (Date-Time API)
diff --git a/exceptions.md b/exceptions.md
@@ -2,6 +2,7 @@
 title: Exception Handling
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Try-With-Resources and Suppressed Exceptions
diff --git a/io.md b/io.md
@@ -2,6 +2,7 @@
 title: I/O and NIO
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Java I/O - File Reading and Writing
diff --git a/java21-features.md b/java21-features.md
@@ -2,6 +2,7 @@
 title: Java 21 New Features
 parent: Java 21 OCP Flashcards
 nav_order: 1
+layout: default
 ---
 
 ## 🃏 Pattern Matching with switch (Java 21)
diff --git a/math.md b/math.md
@@ -2,6 +2,7 @@
 title: Math, Arrays, Wrappers
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Math API and Wrapper Classes
diff --git a/modules.md b/modules.md
@@ -2,6 +2,7 @@
 title: Modules & Migration
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Module System - Basic Declaration and Dependencies
diff --git a/oop.md b/oop.md
@@ -2,6 +2,7 @@
 title: OOP and Encapsulation
 parent: Java 21 OCP Flashcards
 nav_order: 2
+layout: default
 ---
 
 ## 🃏 Instance Methods vs Variables and Static Methods
