Fix for themes not applying (#1873)

# Fixed:
- Fixed: Fixed an issue where themes would not apply properly.

API/DTOs/Theme/SiteThemeDto.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using API.Entities.Enums.Theme;
 using API.Entities.Interfaces;
 using API.Services;
@@ -16,6 +16,10 @@ public class SiteThemeDto : IEntityDate
     /// </summary>
     public required string Name { get; set; }
     /// <summary>
+    /// Normalized name for lookups
+    /// </summary>
+    public required string NormalizedName { get; set; }
+    /// <summary>
     /// File path to the content. Stored under <see cref="DirectoryService.SiteThemeDirectory"/>.
     /// Must be a .css file
     /// </summary>

API/DTOs/UserPreferencesDto.cs

@@ -1,4 +1,4 @@
-using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations;
 using API.Entities;
 using API.Entities.Enums;
 using API.Entities.Enums.UserPreferences;

API/Entities/SiteTheme.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using API.Entities.Enums.Theme;
 using API.Entities.Interfaces;
 using API.Services;

UI/Web/src/app/_models/preferences/site-theme.ts

@@ -12,6 +12,7 @@
   export interface SiteTheme {
     id: number;
     name: string;
+    normalizedName: string;
     filePath: string;
     isDefault: boolean;
     provider: ThemeProvider;