[core] 🔧 Forgot export for notifications package

Signed-off-by: palexdev <alessandro.parisi406@gmail.com>

Author: palexdev

modules/core/src/main/java/module-info.java

@@ -56,6 +56,7 @@
     // Popups
     exports io.github.palexdev.mfxcore.popups;
     exports io.github.palexdev.mfxcore.popups.menu;
+    exports io.github.palexdev.mfxcore.popups.notifications;
 
     // Selection
     exports io.github.palexdev.mfxcore.selection;