Version Update Modal Rework + A few bugfixes (#3664)

API/DTOs/KavitaLocale.cs

@@ -0,0 +1,10 @@
+namespace API.DTOs;
+
+public class KavitaLocale
+{
+    public string FileName { get; set; } // Key
+    public string RenderName { get; set; }
+    public float TranslationCompletion { get; set; }
+    public bool IsRtL { get; set; }
+    public string Hash { get; set; } // ETAG hash so I can run my own localization busting implementation
+}