Add input completion test suite (#4644)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/singletons/Emotes.hpp

@@ -16,6 +16,7 @@ public:
     virtual ~IEmotes() = default;
 
     virtual ITwitchEmotes *getTwitchEmotes() = 0;
+    virtual IEmojis *getEmojis() = 0;
 };
 
 class Emotes final : public IEmotes, public Singleton
@@ -32,6 +33,11 @@ public:
         return &this->twitch;
     }
 
+    IEmojis *getEmojis() final
+    {
+        return &this->emojis;
+    }
+
     TwitchEmotes twitch;
     Emojis emojis;