Add replay controls to Frame statistics and Find zone

[JunKnows]

#1339

Summary

This PR adds a replay mode to Tracy's statistics views so users can
watch histograms and summary statistics evolve frame by frame instead
of only seeing the final aggregated result.

The feature is implemented in both:

• Frame statistics
• Find zone

What changed

• Added a Replay control next to Limit to view in Frame statistics
• Added a Replay control next to Limit range in Find zone
• Added replay speed selection for both panels
• Added pause/continue behavior during replay
• Added an Exit action to leave replay mode while paused
• Made replay respect the active frame bounds:
  • full frame range when no limit is enabled
  • limited frame range when Limit to view / Limit range is enabled
• Updated statistics incrementally during replay so the histogram and
  derived values build up progressively
• Kept histogram axes fixed to the full replay range during playback
  to avoid distracting rescaling
• Avoided initial flashing by starting replay from a stable non-empty
  state when possible
• Kept the replay toolbar layout and interaction consistent between
  both statistics panels

Why

This makes it much easier to understand how timing distributions form
over time, especially when investigating frame-local behavior or
narrowing analysis to a limited range.