zoom tool context toolbar bug

[Nero]

zoom tool context toolbar bug:

- also I would expect that I can drag the arrow to set the scale that way. it's stuck in place (just in some case it moves with mouse like on the beginning of screen recording) - you have to click somewhere beside.

- slider with arrow doesn't reflect (update) when scale is changed in number-box next to it.

[Chris B]

Hey Nero,

I've reproduced this and will pass it back to development—thank you!