Fixed data model classes to generate unique ids when created

I18N Commander/DataModel/Database/Section.cs

@@ -8,7 +8,7 @@ public sealed class Section
     [Key]
     public int Id { get; set; }
     
-    public Guid UniqueId { get; set; }
+    public Guid UniqueId { get; set; } = Guid.NewGuid();
 
     public string Name { get; set; } = string.Empty;
 

I18N Commander/DataModel/Database/Setting.cs

@@ -8,7 +8,7 @@ public sealed class Setting
     [Key]
     public int Id { get; set; }
 
-    public Guid UniqueId { get; set; }
+    public Guid UniqueId { get; set; } = Guid.NewGuid();
 
     public string Code { get; set; } = string.Empty;
 

I18N Commander/DataModel/Database/TextElement.cs

@@ -8,7 +8,7 @@ public sealed class TextElement
     [Key]
     public int Id { get; set; }
     
-    public Guid UniqueId { get; set; }
+    public Guid UniqueId { get; set; } = Guid.NewGuid();
 
     public string Name { get; set; } = string.Empty;
     

I18N Commander/DataModel/Database/Translation.cs

@@ -6,7 +6,7 @@ public sealed class Translation
 {
     public int Id { get; set; }
     
-    public Guid UniqueId { get; set; }
+    public Guid UniqueId { get; set; } = Guid.NewGuid();
 
     public TextElement TextElement { get; set; } = new();