Manage the current selected section

I18N Commander/UI WinForms/Components/TextElements.cs

@@ -1,9 +1,20 @@
-namespace UI_WinForms.Components;
+using DataModel.Database;
+
+namespace UI_WinForms.Components;
 
 public partial class TextElements : UserControl
 {
+    private Section? currentSection;
+    
     public TextElements()
     {
         this.InitializeComponent();
+        
+        // When the section is changed, update this component:
+        AppEvents.WhenSectionChanged += (sender, section) =>
+        {
+            this.currentSection = section;
+            this.buttonAdd.Enabled = this.currentSection is not null;
+        };
     }
 }