refactor: use some more SettingWidget & restyle external tools page (#6023)

src/widgets/settingspages/SettingWidget.hpp

@@ -15,6 +15,8 @@
 #include <QtContainerFwd>
 #include <QWidget>
 
+class QFormLayout;
+
 namespace chatterino {
 
 class GeneralPageView;
@@ -26,6 +28,12 @@ class SettingWidget : QWidget
     explicit SettingWidget(const QString &mainKeyword);
 
 public:
+    struct IntInputParams {
+        std::optional<int> min;
+        std::optional<int> max;
+        std::optional<int> singleStep;
+    };
+
     ~SettingWidget() override = default;
     SettingWidget &operator=(const SettingWidget &) = delete;
     SettingWidget &operator=(SettingWidget &&) = delete;
@@ -35,6 +43,13 @@ public:
     static SettingWidget *checkbox(const QString &label, BoolSetting &setting);
     static SettingWidget *inverseCheckbox(const QString &label,
                                           BoolSetting &setting);
+    static SettingWidget *customCheckbox(const QString &label,
+                                         bool initialValue,
+                                         const std::function<void(bool)> &save);
+
+    static SettingWidget *intInput(const QString &label, IntSetting &setting,
+                                   IntInputParams params);
+
     template <typename T>
     static SettingWidget *dropdown(const QString &label,
                                    EnumStringSetting<T> &setting)
@@ -81,6 +96,11 @@ public:
 
         return widget;
     }
+    static SettingWidget *colorButton(const QString &label,
+                                      QStringSetting &setting);
+    static SettingWidget *lineEdit(const QString &label,
+                                   QStringSetting &setting,
+                                   const QString &placeholderText = {});
 
     SettingWidget *setTooltip(QString tooltip);
     SettingWidget *setDescription(const QString &text);
@@ -90,7 +110,10 @@ public:
     /// All text from the tooltip, description, and label are already keywords
     SettingWidget *addKeywords(const QStringList &newKeywords);
 
+    SettingWidget *conditionallyEnabledBy(BoolSetting &setting);
+
     void addTo(GeneralPageView &view);
+    void addTo(GeneralPageView &view, QFormLayout *formLayout);
 
 private:
     QWidget *label = nullptr;