fix: don't initialize GIFTimer in tests (#5608)

mocks/include/mocks/Emotes.hpp

@@ -0,0 +1,38 @@
+#pragma once
+
+#include "singletons/Emotes.hpp"
+
+namespace chatterino::mock {
+
+class Emotes : public IEmotes
+{
+public:
+    Emotes()
+    {
+        this->emojis.load();
+        // don't initialize GIFTimer
+    }
+
+    ITwitchEmotes *getTwitchEmotes() override
+    {
+        return &this->twitch;
+    }
+
+    IEmojis *getEmojis() override
+    {
+        return &this->emojis;
+    }
+
+    GIFTimer &getGIFTimer() override
+    {
+        return this->gifTimer;
+    }
+
+private:
+    TwitchEmotes twitch;
+    Emojis emojis;
+
+    GIFTimer gifTimer;
+};
+
+}  // namespace chatterino::mock