[BUG] Time travel not working correctly in the same second

**Steps to reproduce**
1. Usa a button twice in less than half a second
2. Start time travel

**Actual behavior**
Only the second usage of the button is reverted

**Expected behavior**
Both button usages are reverted in approx. the same time as they were done.

**System**
 - OS: all
 - Version: 0.0.1

**Additional context**
The actions are saved per second, which is too coarse
