[v4-beta user feedback] text annotation appearance at different image zoom levels

[kswang1029]

This is a user feedback based on v4-beta.

Currently the text annotation box has a fixed size in image coordinate but the rendered text has a fixed size in screen coordinate. Therefore when we zoom out the image, we may see text starts wrapping or not displayed in a desired way. The user suggests we may adopt the approaches from ds9 where there is no text wrapping and the text annotation box scales with different zoom levels.

Screen.Recording.2023-05-16.at.13.17.02.mov