made the number of concurrent tasks configurable

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/pages/global/LauncherPage.cpp

@@ -201,6 +201,8 @@ void LauncherPage::applySettings()
 
     s->set("MenuBarInsteadOfToolBar", ui->preferMenuBarCheckBox->isChecked());
 
+    s->set("NumberOfConcurrentTasks", ui->numberOfConcurrentTasksSpinBox->value());
+
     // Console settings
     s->set("ShowConsole", ui->showConsoleCheck->isChecked());
     s->set("AutoCloseConsole", ui->autoCloseConsoleCheck->isChecked());
@@ -251,6 +253,8 @@ void LauncherPage::loadSettings()
 #endif
     ui->preferMenuBarCheckBox->setChecked(s->get("MenuBarInsteadOfToolBar").toBool());
 
+    ui->numberOfConcurrentTasksSpinBox->setValue(s->get("NumberOfConcurrentTasks").toInt());
+
     // Console settings
     ui->showConsoleCheck->setChecked(s->get("ShowConsole").toBool());
     ui->autoCloseConsoleCheck->setChecked(s->get("AutoCloseConsole").toBool());

launcher/ui/pages/global/LauncherPage.ui

@@ -189,6 +189,29 @@
          </layout>
         </widget>
        </item>
+       <item>
+        <widget class="QGroupBox" name="miscellaneousGroupBox">
+         <property name="title">
+          <string>Miscellaneous</string>
+         </property>
+         <layout class="QGridLayout" name="gridLayout">
+          <item row="0" column="0">
+           <widget class="QLabel" name="numberOfConcurrentTasksLabel">
+            <property name="text">
+             <string>Number of concurrent tasks</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QSpinBox" name="numberOfConcurrentTasksSpinBox">
+            <property name="minimum">
+             <number>1</number>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
        <item>
         <spacer name="verticalSpacer_2">
          <property name="orientation">