Add scrollbar to Select filters dialog (#3737)

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

CHANGELOG.md

@@ -15,6 +15,7 @@
 - Minor: Fixed tag parsing for consecutive escaped characters. (#3711)
 - Minor: Prevent user from entering incorrect characters in Live Notifications channels list. (#3715, #3730)
 - Minor: Fixed automod caught message notice appearing twice for mods. (#3717)
+- Minor: Add scrollbar to `Select filters` dialog. (#3737)
 - Minor: Added `/requests` command. Usage: `/requests [channel]`. Opens the channel points requests queue for the provided channel or the current channel if no input is provided. (#3746)
 - Minor: Added ability to execute commands on chat messages using the message context menu. (#3738)
 - Minor: Added `/copy` command. Usage: `/copy <text>`. Copies provided text to clipboard - can be useful with custom commands. (#3763)

src/widgets/dialogs/SelectChannelFiltersDialog.cpp

@@ -5,6 +5,7 @@
 #include <QCheckBox>
 #include <QLabel>
 #include <QPushButton>
+#include <QScrollArea>
 #include <QVBoxLayout>
 
 namespace chatterino {
@@ -19,7 +20,15 @@ SelectChannelFiltersDialog::SelectChannelFiltersDialog(
     auto okButton = new QPushButton("Ok");
     auto cancelButton = new QPushButton("Cancel");
 
-    vbox->addLayout(itemVbox);
+    auto scrollAreaContent = new QWidget;
+    scrollAreaContent->setLayout(itemVbox);
+
+    auto scrollArea = new QScrollArea;
+    scrollArea->setWidgetResizable(true);
+    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    scrollArea->setWidget(scrollAreaContent);
+
+    vbox->addWidget(scrollArea);
     vbox->addLayout(buttonBox);
 
     buttonBox->addStretch(1);