Implemented requested changes

changed setting from String to int.
changed EnumCase

I used createComboBox only has an implementation that handles stringsettings. I implemented my own combobox to handle the ToastsSettings now. Not sure if this is the best way. Won't come up with something smarter for now.

src/singletons/Toasts.hpp

@@ -8,10 +8,10 @@ namespace chatterino {
 enum class Platform : uint8_t;
 
 enum class ToastReactions {
-    openInBrowser,
-    openInPlayer,
-    openInStreamlink,
-    dontOpen
+    OpenInBrowser = 0,
+    OpenInPlayer = 1,
+    OpenInStreamlink = 2,
+    DontOpen = 3
 };
 
 class Toasts final : public Singleton
@@ -19,6 +19,8 @@ class Toasts final : public Singleton
 public:
     void sendChannelNotification(const QString &channelName, Platform p);
     static QString findStringFromReaction(const ToastReactions &reaction);
+    static QString findStringFromReaction(
+        const pajlada::Settings::Setting<int> &reaction);
     static ToastReactions findReactionFromString(const QString &string);
     static std::map<ToastReactions, QString> reactionToString;
     static std::map<QString, ToastReactions> stringToReaction;