[WIP] Fixing stuff in light/white theme (#723)

* fixed color in light/white them when a tab lights pink

* fixes background color of chatterino in white/light-themes

* Fixed emoji-button in light/white-theme

* added light/white-theme addsplit-button

* forgot to add the image-file

src/autogenerated/ResourcesAutogen.hpp

@@ -12,6 +12,7 @@ public:
         QPixmap pajlada;
     } avatars;
     struct {
+        QPixmap addSplit;
         QPixmap addSplitDark;
         QPixmap ban;
         QPixmap banRed;