Add CI workflow to check line endings of all source files (#2082)

In addition, all found errors (formatting & line ending) have been fixed in this PR.

src/widgets/dialogs/IrcConnectionEditor.hpp

@@ -1,32 +1,32 @@
-#pragma once
-
-#include <boost/optional.hpp>
-
-#include "providers/irc/Irc2.hpp"
-#include "widgets/BaseWindow.hpp"
-
-namespace Ui {
-class IrcConnectionEditor;
-}
-
-namespace chatterino {
-
-struct IrcServerData;
-
-class IrcConnectionEditor : public QDialog
-{
-    Q_OBJECT
-
-public:
-    explicit IrcConnectionEditor(const IrcServerData &data, bool isAdd = false,
-                                 QWidget *parent = nullptr);
-    ~IrcConnectionEditor();
-
-    IrcServerData data();
-
-private:
-    Ui::IrcConnectionEditor *ui_;
-    IrcServerData data_;
-};
-
-}  // namespace chatterino
+#pragma once
+
+#include <boost/optional.hpp>
+
+#include "providers/irc/Irc2.hpp"
+#include "widgets/BaseWindow.hpp"
+
+namespace Ui {
+class IrcConnectionEditor;
+}
+
+namespace chatterino {
+
+struct IrcServerData;
+
+class IrcConnectionEditor : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit IrcConnectionEditor(const IrcServerData &data, bool isAdd = false,
+                                 QWidget *parent = nullptr);
+    ~IrcConnectionEditor();
+
+    IrcServerData data();
+
+private:
+    Ui::IrcConnectionEditor *ui_;
+    IrcServerData data_;
+};
+
+}  // namespace chatterino