Add mail categories support

Wino.Core.Domain/Enums/MailCategorySource.cs

@@ -0,0 +1,7 @@
+namespace Wino.Core.Domain.Enums;
+
+public enum MailCategorySource
+{
+    Local,
+    Outlook
+}

Wino.Core.Domain/Enums/MailOperation.cs

@@ -13,6 +13,7 @@ public enum MailSynchronizerOperation
     AlwaysMoveTo,
     MoveToFocused,
     Archive,
+    UpdateCategories,
 }
 
 public enum FolderSynchronizerOperation
@@ -35,6 +36,13 @@ public enum CalendarSynchronizerOperation
     TentativeEvent,
 }
 
+public enum CategorySynchronizerOperation
+{
+    CreateCategory,
+    UpdateCategory,
+    DeleteCategory,
+}
+
 // UI requests
 public enum MailOperation
 {

Wino.Core.Domain/Enums/MailSynchronizationType.cs

@@ -3,6 +3,7 @@
 public enum MailSynchronizationType
 {
     UpdateProfile, // Only update profile information
+    Categories, // Only update mail categories
     ExecuteRequests, // Run the queued requests, and then synchronize if needed.
     FoldersOnly, // Only synchronize folder metadata.
     InboxOnly, // Only Inbox, Sent, Draft and Deleted folders.

Wino.Core.Domain/Enums/WinoPage.cs

@@ -24,6 +24,7 @@ public enum WinoPage
     AppPreferencesPage,
     SettingOptionsPage,
     AliasManagementPage,
+    MailCategoryManagementPage,
     ImapCalDavSettingsPage,
     KeyboardShortcutsPage,
     CalendarPage,