Fixed contributor avatar links (#2126)

* Fixed contributor avatar links

Had to put them in qtresource format so those will actually display in Settings -> About.
Reference: https://doc.qt.io/qt-5/resources.html#compiled-in-resources

* Added my avatar and updated documentation

src/autogenerated/ResourcesAutogen.cpp

@@ -6,6 +6,7 @@ Resources2::Resources2()
 {
     this->avatars.fourtf = QPixmap(":/avatars/fourtf.png");
     this->avatars.pajlada = QPixmap(":/avatars/pajlada.png");
+    this->avatars.zneix = QPixmap(":/avatars/zneix.png");
     this->buttons.addSplit = QPixmap(":/buttons/addSplit.png");
     this->buttons.addSplitDark = QPixmap(":/buttons/addSplitDark.png");
     this->buttons.ban = QPixmap(":/buttons/ban.png");

src/autogenerated/ResourcesAutogen.hpp

@@ -11,6 +11,7 @@ public:
     struct {
         QPixmap fourtf;
         QPixmap pajlada;
+        QPixmap zneix;
     } avatars;
     struct {
         QPixmap addSplit;