feat: adjust annotation size by scrolling over the toolbar button

[sonnymilton]

Summary

This changes the annotation size button in the bottom toolbar so the scroll can adjust the annotation size directly while the cursor is hovering the button.

The change keeps the existing annotation size dialog intact and reuses the same ToolbarEvent::AnnotationSizeChanged flow for updates.

Notes

• No new dependencies were added.
• No README changes were needed because this does not change documented CLI or configuration behavior.
• closes feature: Allow adjusting annotation size by scrolling over the toolbar button #513
• closes Feature request / Scroll on annotation size to change value #171

[RobertMueller2]

Thanks for the PR. We'll probably merge this after we had a chance to review. But please note that this might be temporary, there's a (currently inactive) PR #178 which may revamp the S/M/L and annotation size with a different approach and control.

[RobertMueller2]

* If there is a related issue, please link it here to follow the contribution guidelines.

😆

[sonnymilton]

Thanks for the note. That makes sense.

I’m fine with this being treated as a temporary improvement if PR #178 ends up replacing this control with a different approach.

Created a related issue: #513

[RobertMueller2]

LGTM, thanks :)