download: reworked scryfall images support:

- download: fixed unmount zip errors on cancel download in some use cases (closes #12536);
- download: significant download speed improvements (now it depends on user's network speed, not api limitations);
- download: added additional error dialogs on bad use cases;
- scryfall: added cards and bulk data api support;
- scryfall: added bulk data download (updates once per week, contains all scryfall cards and store in images\downloading folder, 2 GB size);
- scryfall: added optimized images download without api usage (use direct images links from bulk data, closes #11576);
- scryfall: improved image source searching for some use cases (miss or wrong images problems, closes #12511);
- scryfall: tokens don't use bulk data;
- scryfall: 75k small images downloads 40 minutes and takes 1 GB and 2100 api calls (most of it from tokens);
- scryfall: how-to disable bulk data, e.g. for api testing: -Dxmage.scryfallEnableBulkData=false

Mage.Client/src/main/java/mage/client/MageFrame.java

@@ -1355,7 +1355,7 @@ public class MageFrame extends javax.swing.JFrame implements MageClient {
         userRequestDialog.showDialog(userRequestMessage);
     }
 
-    public void showErrorDialog(String errorType, Exception e) {
+    public void showErrorDialog(String errorType, Throwable e) {
         String errorMessage = e.getMessage();
         if (errorMessage == null || errorMessage.isEmpty() || errorMessage.equals("Null")) {
             errorMessage = e.getClass().getSimpleName() + " - look at server or client logs for more details";