Fixed splits losing filters when closing and reopening them (#3351)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/widgets/splits/ClosedSplits.hpp

@@ -3,6 +3,7 @@
 #include "common/Channel.hpp"
 #include "widgets/helper/NotebookTab.hpp"
 
+#include <QUuid>
 #include <deque>
 #include <mutex>
 #include <utility>
@@ -14,6 +15,7 @@ class ClosedSplits
 public:
     struct SplitInfo {
         QString channelName;
+        QList<QUuid> filters;
         NotebookTab *tab;  // non owning ptr
     };
 

src/widgets/splits/SplitContainer.cpp

@@ -255,7 +255,8 @@ void SplitContainer::addSplit(Split *split)
                     tab->connect(tab, &QWidget::destroyed, [tab]() mutable {
                         ClosedSplits::invalidateTab(tab);
                     });
-                    ClosedSplits::push({split->getChannel()->getName(), tab});
+                    ClosedSplits::push({split->getChannel()->getName(),
+                                        split->getFilters(), tab});
                 }
                 break;