fix(autofill): send the window back to the tray when the picker is dismissed

Cancelling left the window on the desktop, though it had only been restored to
ask which entry to fill. Quick-search already hides itself on Esc; this makes
the picker symmetric. Applies to all three hotkeys — the capture and the hide
both sit on the shared BridgeAutofillRequest / autofill/cancel paths, so full,
password-only and TOTP behave identically.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

delphi-backend/UMainForm.pas

@@ -1087,9 +1087,14 @@ begin
     if FAutofillTargetHWND <> 0 then
       SetForegroundWindow(FAutofillTargetHWND);
     FAutofillTargetHWND := 0;
-    // Cancelled: the window stays wherever the user left it, and the captured
-    // state must not leak into the next hotkey.
-    FAutofillHotkeyWasHidden := False;
+    // The window only came out of the tray to show the picker, so dismissing it
+    // puts it back — same as quick-search, which hides on Esc too. Done after
+    // handing focus to the target above.
+    if FAutofillHotkeyWasHidden then
+    begin
+      FAutofillHotkeyWasHidden := False;
+      FBridge.MinimizeToTray;
+    end;
     LogLine('Autofill cancelled (no match or dismissed)');
   end