Todo: Update Panzoom from 4.5.1 to 4.6.1

[IgorA100]

https://github.com/timmywil/panzoom
https://unpkg.com/@panzoom/panzoom@4.6.1/dist/panzoom.js
https://unpkg.com/@panzoom/panzoom@4.6.1/dist/panzoom.min.js

• commit changes Fix: If "opts.focal" - calculate coordinates taking into account the planned Scale, and not just the calculated Scale (jquery.panzoom.js) #4082
  Requires further testing.
  I'll begin testing soon.