Added backups of all data, restorable on another computer (#1008)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Tools/ChatArchive/ChatArchiveCollisionBehavior.cs

@@ -0,0 +1,17 @@
+namespace AIStudio.Tools.ChatArchive;
+
+/// <summary>
+/// Determines what the import does when a chat from the archive already exists.
+/// </summary>
+public enum ChatArchiveCollisionBehavior
+{
+    /// <summary>
+    /// Keeps the existing chat and ignores the one from the archive.
+    /// </summary>
+    SKIP,
+
+    /// <summary>
+    /// Imports the chat from the archive as an additional chat.
+    /// </summary>
+    IMPORT_AS_COPY,
+}