Keyboard now works.

src/main.cpp

@@ -93,16 +93,8 @@ int main(int argc, char* argv[]) {
 
   Display display{window, {0, 0}, {1000, 1000}};
 
-  while (display.active()) {
-    auto currentTime = std::chrono::high_resolution_clock::now();
-    float dt = std::chrono::duration<float, std::chrono::milliseconds::period>(currentTime - lastCycleTime).count();
-
-    if (dt > cycleDelay)
-    {
-        lastCycleTime = currentTime;
-        chip8.Cycle();
-    }
-
+  while (true) {
+    chip8.Cycle();
     display.update(chip8);
     display.render();
   }