bicarusandGitHub e3d63c65c1 overlay: fps window clean up (#506) ...

## Link to GitHub Issue, if one exists
n/a

## Description of change
Use fmt library for formatting time

Round down sub-second units so that the FPS counter only updates once
per second (instead of Time and Uptime ticking independently)

clean up usage of `localtime` in `logging.cpp`

2026-01-08 21:52:13 -08:00

..

spice2x

overlay: fps window clean up (#506)

2026-01-08 21:52:13 -08:00