[DeckEditor] Use CommanderSpellbook.com to estimate bracket if format is 'commander' (#6415)

* [DeckEditor] Use CommanderSpellbook.com to estimate bracket if format is 'commander'

Took 2 minutes

Took 16 minutes

* Convert json data holder to structs, rename variables, extract widget

- Extract bracket estimation UI from DeckEditorDeckDockWidget into a
  new CommanderBracketWidget
- Move CommanderSpellbook integration settings from CardsDisplaySettings
  to DeckEditorSettings (matching the settings refactor on master)
- Rename CommanderSpellbook integration variables to drop the redundant
  'DeckEditor' prefix

Took 4 minutes

# Commit time for manual adjustment:
# Took 6 minutes

# Commit time for manual adjustment:
# Took 8 minutes

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/window_main.cpp

@@ -38,6 +38,7 @@
 #include "version_string.h"
 #include "widgets/dialogs/dlg_connect.h"
 #include "widgets/server/handle_public_servers.h"
+#include "widgets/tabs/api/commander_spellbook/handle_commander_brackets.h"
 #include "widgets/utility/get_text_with_max.h"
 
 #include <QAction>
@@ -559,6 +560,8 @@ void MainWindow::startupConfigCheck()
         actCheckClientUpdates();
     }
 
+    actCheckCommanderBracketDefinitionUpdates();
+
     if (SettingsCache::instance().network().getClientVersion() == CLIENT_INFO_NOT_SET) {
         // no config found, 99% new clean install
         qCInfo(WindowMainStartupVersionLog)
@@ -661,6 +664,7 @@ void MainWindow::alertForcedOracleRun(const QString &version, bool isUpdate)
 
     actCheckCardUpdates();
     actCheckServerUpdates();
+    actCheckCommanderBracketDefinitionUpdates();
 }
 
 MainWindow::~MainWindow()
@@ -1005,6 +1009,16 @@ void MainWindow::checkClientUpdatesFinished(bool needToUpdate, bool /* isCompati
     }
 }
 
+void MainWindow::actCheckCommanderBracketDefinitionUpdates()
+{
+    auto *handler = new HandleCommanderBrackets(this);
+
+    connect(handler, &HandleCommanderBrackets::sigBracketDefinitionsDownloaded, this,
+            []() { qDebug() << "Bracket definitions loaded"; });
+
+    handler->downloadBracketDefinitions();
+}
+
 void MainWindow::refreshShortcuts()
 {
     ShortcutsSettings &shortcuts = SettingsCache::instance().shortcuts();