refactor and add using constants instead of hard coded strings ...

Configurations/Entities/XStringEntityConfiguration.cs

@@ -1,6 +1,7 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata.Builders;
 using xDataService.Providers;
+using xStringService.Constants;
 using xStringService.Models.Entities;
 
 namespace xStringService.Configurations.Entities
@@ -9,7 +10,7 @@ namespace xStringService.Configurations.Entities
     {
         public override void Configure(EntityTypeBuilder<XString> builder)
         {
-            builder.ToTable("Strings");
+            builder.ToTable(XStringServiceConstants.XStringTable);
         }
     }
 }