Dragging blocks does not pan screen

[KatieWoe]

Test device
Dell
Operating System
Win 11
Browser
Chrome
Problem description
For phetsims/qa#785
When zoomed in, dragging a block to the edge of the screen does not pan it. This is the case with any amount of zoom.

Visuals

Troubleshooting information:

!!!!! DO NOT EDIT !!!!!
Name: Density
URL: https://bayes.colorado.edu/dev/phettest/density/density_en.html?ea&brand=phet
Version: 1.1.0-dev.0 (unbuilt)
Features missing: applicationcache, applicationcache, touch
Flags: pixelRatioScaling
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.74 Safari/537.36
Language: en-US
Window: 1280x649
Pixel Ratio: 1.5/1
WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium)
GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium)
Vendor: WebKit (WebKit WebGL)
Vertex: attribs: 16 varying: 30 uniform: 4096
Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32)
Max viewport: 32767x32767
OES_texture_float: true
Dependencies JSON: {}

[Nancy-Salpepi]

First reported in this issue in phetsims/scenery#1321

[jonathanolson]

Implemented above, can you verify?

[KatieWoe]

Looks really good on master

[jonathanolson]

Thanks!