## Summary
Adds an option to allow manual screen refresh on power button short
press.
## Additional Context
there's an option to refresh the screen after a set number of pages. but
sometimes a manual refresh is needed to clear up stale ink pixels. this
works everywhere both in and out of reading mode.
resolves#550
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### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it helps set the right
context for reviewers.
Did you use AI tools to help write this code? _**PARTIALLY**_, to
understand the project structure.
