feat: make viewer stay inside SVG boundaries

[fibek]

Pull Request Title:

Implement Pan and Zoom Constraints for SVG Viewer

Description:

This PR addresses issue #143 by implementing the following improvements to enhance the user experience within the SVG viewer:

1. Pan restrictions: Users can no longer drag the SVG outside its boundaries when the constrainToSVGBounds flag is set to true.
2. Automatic Fit to Viewer: Calls fitToViewer when the SVG does not fully fit within the viewer.
   • I am open to feedback on this approach; an alternative could be to block all interactions except for zooming in.
3. Zoom restrictions: Zoom functionality is restricted using fitToViewer, preventing users from excessively zooming out beyond the SVG boundaries.

How to Test

To test these new features:

1. Run the application with npm run start.
2. Navigate to StandardViewer.
3. In Controls, set the constrainToSVGBounds flag to true.

Related Issues:

• Make viewer stay inside SVG boundaries? #143

[SmileHub]

Looking towards it in new pacakge releases if it works

[wolasss]

@chrvadala any chance you might have some time to look into it?